BY-LAWS

                                       OF

                                BGP DENVER, INC.

                                   ARTICLE I

                                    OFFICES

                  1.1 Registered Office: The registered office shall be
established and maintained at and shall be the registered agent of the
Corporation in charge hereof.

                  1.2 Other Offices: The corporation may have other offices,
either within or without the State of Delaware, at such place or places as the
Board of Directors may from time to time appoint or the business of the
corporation may require, provided, however, that the corporation's books and
records shall be maintained at such place within the continental United States
as the Board of Directors shall from time to time designate.


                                   ARTICLE II

                                  STOCKHOLDERS

                  2.1 Place of Stockholders' Meetings: All meetings of the
stockholders of the corporation shall be held at such place or places, within
or outside the State of Delaware as may be fixed by the Board of Directors from
time to time or as shall be specified in the respective notices thereof.

                  2.2 Date and Hour of Annual Meetings of Stockholders: An
annual meeting of stockholders shall be held each year within five months after
the close of the fiscal year of the Corporation.

                  2.3 Purpose of Annual Meetings: At each annual meeting, the
stockholders shall elect the members of the Board of Directors for the
succeeding year. At any such annual meeting any further proper business may be
transacted.

                  2.4 Special Meetings of Stockholders: Special meetings of the
stockholders or of any class or series thereof entitled to vote may be called
by the President or by the Chairman of the Board of Directors, or at the
request in writing by stockholders of record owning at least fifty (50%)
percent of the issued and outstanding voting shares of common stock of the
corporation.

                  2.5 Notice of Meetings of Stockholders: Except as otherwise
expressly required or permitted by law, not less than ten days nor more than
sixty days before the date of every stockholders' meeting the Secretary shall
give to each stockholder of record entitled to vote at such meeting, written
notice, served personally by mail or by telegram, stating the place, date and
hour






of the meeting and, in the case of a special meeting, the purpose or purposes
for which the meeting is called. Such notice, if mailed shall be deemed to be
given when deposited in the United States mail, postage prepaid, directed to
the stockholder at his address for notices to such stockholder as it appears on
the records of the corporation.

                  2.6 Quorum of Stockholders: (a) Unless otherwise provided by
the Certificate of Incorporation or by law, at any meeting of the stockholders,
the presence in person or by proxy of stockholders entitled to cast a majority
of the votes thereat shall constitute a quorum. The withdrawal of any
shareholder after the commencement of a meeting shall have no effect on the
existence of a quorum, after a quorum has been established at such meeting.

                  (b) At any meeting of the stockholders at which a quorum
shall be present, a majority of voting stockholders, present in person or by
proxy, may adjourn the meeting from time to time without notice other than
announcement at the meeting. In the absence of a quorum, the officer presiding
thereat shall have power to adjourn the meeting from time to time until a
quorum shall be present. Notice of any adjourned meeting, other than
announcement at the meeting, shall not be required to be given except as
provided in paragraph (d) below and except where expressly required by law.

                  (c) At any adjourned session at which a quorum shall be
present, any business may be transacted which might have been transacted at the
meeting originally called but only those stockholders entitled to vote at the
meeting as originally noticed shall be entitled to vote at any adjournment or
adjournments thereof, unless a new record date is fixed by the Board of
Directors.

                  (d) If an adjournment is for more than thirty days, or if
after the adjournment a new record date is fixed for the adjourned meeting, a
notice of the adjourned meeting shall be given to each stockholder of record
entitled to vote at the meeting.

                  2.7 Chairman and Secretary of Meetings: The President, shall
preside at meetings of the stockholders. The Secretary shall act as secretary
of the meeting or if he is not present, then the presiding officer may appoint
a person to act as secretary of the meeting.

                  2.8 Voting by Stockholders: Except as may be otherwise
provided by the Certificate of Incorporation or these by-laws, at every meeting
of the stockholders each stockholder shall be entitled to one vote for each
share of voting stock standing in his name on the books of the corporation on
the record date for the meeting. Except as otherwise provided by these by-laws,
all elections and questions shall be decided by the vote of a majority in
interest of the stockholders present in person or represented by proxy and
entitled to vote at the meeting.

                  2.9 Proxies: Any stockholder entitled to vote at any meeting
of stockholders may vote either in person or by proxy. Every proxy shall be in
writing, subscribed by the stockholder or his duly authorized attorney-in-fact,
but need not be dated, scaled, witnessed or acknowledged.

                  2.10 Inspectors: The election of directors and any other vote
by ballot at any meeting of the stockholders shall be supervised by at least
two inspectors. Such inspectors may be appointed by the presiding officer
before or at the meeting; or if one or both inspectors so appointed

                                      [ 2





shall refuse to serve or shall not be present, such appointment shall be made
by the officer presiding at the meeting.

                  2.11 List of Stockholders: (a) At least ten days before every
meeting of stockholders, the Secretary shall prepare and make a complete list
of the stockholders entitled to vote at the meeting, arranged in alphabetical
order, and showing the address of each stockholder and the number of shares
registered in the name of each stockholder.

                  (b) During ordinary business hours, for a period of at least
ten days prior to the meeting, such list shall be open to examination by any
stockholder for any purpose germane to the meeting, either at a place within
the city where the meeting is to be held, which place shall be specified in the
notice of the meeting, or if not so specified, at the place where the meeting
is to be held.

                  (c) The list shall also be produced and kept at the time and
place of the meeting during the whole time of the meeting, and it may be
inspected by any stockholder who is present.

                  (d) The stock ledger shall be the only evidence as to who are
the stockholders entitled to examine the stock ledger, the list required by
this Section 2.11 or the books of the corporation, or to vote in person or by
proxy at any meeting of stockholders.

                  2.12 Procedure at Stockholders' Meetings: Except as otherwise
provided by these by-laws or any resolutions adopted by the stockholders or
Board of Directors, the order of business and all other matters of procedure at
every meeting of stockholders shall be determined by the presiding officer.

                  2.13 Action By Consent Without Meeting: Unless otherwise
provided by the Certificate of Incorporation, any action required to be taken
at any annual or special meeting of stockholders, or any action which may be
taken at any annual or special meeting, may be taken without a meeting, without
prior notice and without a vote, if a consent in writing, setting forth the
action so taken, shall be signed by the holders of outstanding stock having not
less than the minimum number of votes that would be necessary to authorize or
take such action at a meeting at which all shares entitled to vote thereon were
present and voted. Prompt notice of the taking of the corporate action without
a meeting by less than unanimous written consent shall be given to those
stockholders who have not consented in writing.


                                  ARTICLE III

                                   DIRECTORS

                  3.1 Powers of Directors: The property, business and affairs
of the corporation shall be managed by its Board of Directors which may
exercise all the powers of the corporation except such as are by the law of the
State of Delaware or the Certificate of Incorporation or these by-laws required
to be exercised or done by the stockholders.

                                       3





                  3.2 Number, Method of Election, Terms of Office of Directors:
The number of directors which shall constitute the Board of Directors shall be
( ) unless and until otherwise determined by a vote of a majority of the entire
Board of Directors. Each Director shall hold office until the next annual
meeting of stockholders and until his successor is elected and qualified,
provided, however, that a director may resign at any time. Directors need not
be stockholders.

                  3.3 Vacancies on Board of Directors: Removal: (a) Any
director may resign his office at any time by delivering his resignation in
writing to the Chairman of the Board or to the President. It will take effect
at the time specified therein or, if no time is specified, it will be effective
at the time of its receipt by the corporation. The acceptance of a resignation
shall not be necessary to make it effective, unless expressly so provided in
the resignation.

                  (b) Any vacancy in the authorized number of directors may be
filled by majority vote of the stockholders and any director so chosen shall
hold office until the next annual election of directors by the stockholders and
until his successor is duly elected and qualified or until his earlier
resignation or removal.

                  (c) Any director may be removed with or without cause at any
time by the majority vote of the stockholders given at a special meeting of the
stockholders called for that purpose.

                  3.4 Meetings of the Board of Directors: (a) The Board of
Directors may hold their meetings, both regular and special, either within or
outside the State of Delaware.

                  (b) Regular meetings of the Board of Directors may be held at
such time and place as shall from time to time be determined by resolution of
the Board of Directors. No notice of such regular meetings shall be required.
If the date designated for any regular meeting be a legal holiday, then the
meeting shall be held on the next day which is not a legal holiday.

                  (c) The first meeting of each newly elected Board of
Directors shall be held immediately following the annual meeting of the
stockholders for the election of officers and the transaction of such other
business as may come before it. If such meeting is held at the place of the
stockholders' meeting, no notice thereof shall be required.

                  (d) Special meetings of the Board of Directors shall be held
whenever called by direction of the Chairman of the Board or the President or
at the written request of any one director.

                  (e) The Secretary shall give notice to each director of any
special meeting of the Board of Directors by mailing the same at least three
days before the meeting or by telegraphing, telexing, or delivering the same
not later than the date before the meeting.

                  Unless required by law, such notice need not include a
statement of the business to be transacted at, or the purpose of, any such
meeting. Any and all business may be transacted at any meeting of the Board of
Directors. No notice of any adjourned meeting need be given. No notice to or
waiver by any director shall be required with respect to any meeting at which
the director is present.

                                       4





                  3.5 Quorum and Action: Unless provided otherwise by law or by
the Certificate of Incorporation or these by-laws, a majority of the Directors
shall constitute a quorum for the transaction of business; but if there shall
be less than a quorum at any meeting of the Board, a majority of those present
may adjourn the meeting from time to time. The vote of a majority of the
Directors present at any meeting at which a quorum is present shall be
necessary to constitute the act of the Board of Directors.

                  3.6 Presiding Officer and Secretary of the Meeting: The
President, or, in his absence a member of the Board of Directors selected by
the members present, shall preside at meetings of the Board. The Secretary
shall act as secretary of the meeting, but in his absence the presiding officer
may appoint a secretary of the meeting.

                  3.7 Action by Consent Without Meeting: Any action required or
permitted to be taken at any meeting of the Board of Directors or of any
committee thereof may be taken without a meeting if all members of the Board or
committee, as the case may be, consent thereto in writing, and the writing or
writings are filed with the minutes or proceedings of the Board or committee.

                  3.8 Action by Telephonic Conference: Members of the Board of
Directors, or any committee designated by such board, may participate in a
meeting of such board or committee by means of conference telephone or similar
communications equipment by means of which all persons participating in the
meeting can hear each other, and participation in such a meeting shall
constitute presence in person at such meeting.

                  3.9 Committees: The Board of Directors shall, by resolution
or resolutions passed by a majority of Directors designate one or more
committees, each of such conunittees to consist of one or more Directors of the
Corporation, for such purposes as the Board shall determine. The Board may
designate one or more directors as alternate members of any committee, who may
replace any absent or disqualified member at any meeting of such committee.

                  3.10 Compensation of Directors: Directors shall receive such
reasonable compensation for their service on the Board of Directors or any
committees thereof, whether in the form of salary or a fixed fee for attendance
at mectings, or both, with expenses, if any, as the Board of Directors may from
time to time determine. Nothing herein contained shall be construed to preclude
any Director from serving in any other capacity and receiving compensation
therefor.


                                   ARTICLE IV

                                    OFFICERS

                  4.1 Officers, Title, Elections, Terms: (a) The elected
officers of the corporation shall be a President, a Treasurer and a Secretary,
and such other officers as the Board of Directors shall deem advisable. The
officers shall be elected by the Board of Directors at its annual meeting
following the annual meeting of the stockholders, to serve at the pleasure of
the Board or otherwise as shall be specified by the Board at the time of such
election and until their successors are elected and qualified.

                                       5





                  (b) The Board of Directors may elect or appoint at any time,
and from time to time, additional officers or agents with such duties as it may
deem necessary or desirable. Such additional officers shall serve at the
pleasure of the Board or otherwise as shall be specified by the Board at the
time of such election or appointment. Two or more offices may be held by the
same person.

                  (c) Any vacancy in any office may be filled for the unexpired
portion of the term by the Board of Directors.

                  (d) Any officer may resign his office at any time. Such
resignation shall be made in writing and shall take effect at the time
specified therein or, if no time has been specified, at the time of its receipt
by the corporation. The acceptance of a resignation shall not be necessary to
make it effective, unless expressly so provided in the resignation.

                  (e) The salaries of all officers of the corporation shall be
fixed by the Board of Directors.

                  4.2 Removal of Elected Officers: Any elected officer may be
removed at any time, either with or without cause, by resolution adopted at any
regular or special meeting of the Board of Directors by a majority of the
Directors then in office.

                  4.3 Duties: (a) President: The President shall be the
principal executive officer of the corporation and, subject to the control of
the Board of Directors, shall supervise and control all the business and
affairs of the corporation. He shall, when present, preside at all meetings of
the stockholders and of the Board of Directors. He shall see that all orders
and resolutions of the Board of Directors are carried into effect (unless any
such order or resolution shall provide otherwise), and in general shall perform
all duties incident to the office of president and such other duties as may be
prescribed by the Board of Directors from time to time.

                  (b) Treasurer: The Treasurer shall (1) have charge and
custody of and be responsible for all funds and securities of the Corporation;
(2) receive and give receipts for moneys due and payable to the corporation
from any source whatsoever; (3) deposit all such moneys in the name of the
corporation in such banks, trust companies, or other depositories as shall be
selected by resolution of the Board of Directors; and (4) in general perform
all duties incident to the office of treasurer and such other duties as from
time to time may be assigned to him by the President or by the Board of
Directors. He shall, if required by the Board of Directors, give a bond for the
faithful discharge of his duties in such sum and with such surety or sureties
as the Board of Directors shall determine.

                  (c) Secretary: The Secretary shall (1) keep the minutes of
the meetings of the stockholders, the Board of Directors, and all committees,
if any, of which a secretary shall not have been appointed, in one or more
books provided for that purpose; (2) see that all notices are duly given in
accordance with the provisions of these by-laws and as required by law; (3) be
custodian of the corporate records and of the seal of the corporation and see
that the seal of the corporation is affixed to all documents, the execution of
which on behalf of the corporation wider its seal, is duly authorized; (4) keep
a register of the post office address of each stockholder which shall be
furnished

                                       6





to the Secretary by such stockholder; (5) have general charge of stock transfer
books of the Corporation; and (6) in general perform all duties incident to the
office of secretary and such other duties as from time to time may be assigned
to him by the President or by the Board of Directors.


                                   ARTICLE V

                                 CAPITAL STOCK

                  5.1 Stock Certificates: (a) Every holder of stock in the
corporation shall be entitled to have a certificate signed by, or in the name
of, the corporation by the President and by the Treasurer or the Secretary,
certifying the number of shares owned by him.

                  (b) If such certificate is countersigned by a transfer agent
other than the corporation or its employee, or by a registrar other than the
corporation or its employee, the signatures of the officers of the corporation
may be facsimiles, and, if permitted by law, any other signature may be a
facsimile.

                  (c) In case any officer who has signed or whose facsimile
signature has been placed upon a certificate shall have ceased to be such
officer before such certificate is issued, it may be issued by the corporation
with the same effect as if he were such officer at the date of issue.

                  (d) Certificates of stock shall be issued in such form not
inconsistent with the Certificate of Incorporation as shall be approved by the
Board of Directors, and shall be numbered and registered in the order in which
they were issued.

                  (e) All certificates surrendered to the corporation shall be
canceled with the date of cancellation, and shall be retained by the Secretary,
together with the powers of attorney to transfer and the assignments of the
shares represented by such certificates, for such period of time as shall be
prescribed from time to time by resolution of the Board of Directors.

                  5.2 Record Ownership: A record of the name and address of the
holder of such certificate, the number of shares represented thereby and the
date of issue thereof shall be made on the corporation's books. The corporation
shall be entitled to treat the holder of any share of stock as the holder in
fact thereof, and accordingly shall not be bound to recognize any equitable or
other claim to or interest in any share on the part of any other person,
whether or not it shall have express or other notice thereof, except as
required by law.

                  5.3 Transfer of Record Ownership: Transfers of stock shall be
made on the books of the corporation only by direction of the person named in
the certificate or his attorney, lawfully constituted in writing, and only upon
the surrender of the certificate therefor and a written assessment of the
shares evidenced thereby. Whenever any transfer of stock shall be made for
collateral security, and not absolutely, it shall be so expressed in the entry
of the transfer if, when the certificates are presented to the corporation for
transfer, both the transferor and the transferee request the corporation to do
so.


                                       7





                  5.4 Lost, Stolen or Destroyed Certificates: Certificates
representing shares of the stock of the corporation shall be issued in place of
any certificate alleged to have been lost, stolen or destroyed in such manner
and on such terms and conditions as the Board of Directors from time to time
may authorize.

                  5.5 Transfer Agent: Registrar: Rules Respecting Certificates:
The corporation may maintain one or more transfer offices or agencies where
stock of the corporation shall be transferable. The corporation may also
maintain one or more registry offices where such stock shall be registered. The
Board of Directors may make such rules and regulations as it may deem expedient
concerning the issue, transfer and registration of stock certificates.

                  5.6 Fixing Record Date for Determination of Stockholders of
Record: The Board of Directors may fix, in advance, a date as the record date
for the purpose of determining stockholders entitled to notice of, or to vote
at, any meeting of the stockholders or any adjournment thereof, or the
stockholders entitled to receive payment of any dividend or other distribution
or the allotment of any rights, or entitled to exercise any rights in respect
of any change, conversion or exchange of stock, or to express consent to
corporate action in writing without a meeting, or in order to make a
determination of the stockholders for the purpose of any other lawful action.
Such record date in any case shall be not more than sixty days nor less than
ten days before the date of a meeting of the stockholders, nor more than sixty
days prior to any other action requiring such determination of the
stockholders. A determination of stockholders of the meeting; provided,
however, that the Board of Directors may fix a new record date for the
adjourned meeting.

                  5.7 Dividends: Subject to the provisions of the Certificate
of Incorporation, the Board of Directors may, out of funds legally available
therefor at any regular or special meeting, declare dividends upon the capital
stock of the corporation as and when they deem expedient. Before declaring any
dividend there may be set apart out of any funds of the corporation available
for dividends, such sum or sums as the Board of Directors from time to time in
their discretion deem proper for working capital or as a reserve fund to meet
contingencies or for equalizing dividends or for such other purposes as the
Board of Directors shall deem conducive to the interests of the corporation.


                                   ARTICLE VI

                       SECURITIES HELD BY THE CORPORATION

                  6.1 Voting: Unless the Board of Directors shall otherwise
order, the President, the Secretary or the Treasurer shall have full power and
authority, on behalf of the corporation, to attend, act and vote at any meeting
of the stockholders of any corporation in which the corporation may hold stock,
and at such meeting to exercise any or all rights and powers incident to the
ownership of such stock, and to execute on behalf of the corporation a proxy or
proxies empowering another or others to act as aforesaid. The Board of
Directors from time to time may confer like powers upon any other person or
persons.


                                       8





                  6.2 General Authorization to Transfer Securities Held By the
Corporation: (a) Any of the following officers, to wit: the President and the
Treasurer shall be, and they hereby are, authorized and empowered to transfer,
convert, endorse, sell, assign, set over and deliver any and all shares of
stock, bonds, debentures, notes, subscription warrants, stock purchase
warrants, evidence of indebtedness, or other securities now or hereafter
standing in the name of or owned by the corporation, and to make, execute and
deliver, under the seal of the corporation, any and all written instruments of
assignment and transfer necessary or proper to effectuate the authority hereby
conferred.

                  (b) Whenever there shall be annexed to any instrument of
assignment and transfer executed pursuant to and in accordance with the
foregoing paragraph (a), a certificate of the Secretary of the corporation in
office at the date of such certificate setting forth the provisions of this
Section 6.2 and stating that they are in full force and effect and setting
forth the names of persons who are then officers of the corporation, then all
persons to whom such instrument and annexed certificate shall thereafter come,
shall be entitled, without further inquiry or investigation and regardless of
the date of such certificate, to assume and to act in reliance upon the
assumption that the shares of stock or other securities named in such
instrument were theretofore duly and properly transferred, endorsed, sold,
assigned, set over and delivered by the corporation, and that with respect to
such securities the authority of these provisions of the by-laws and of such
officers is still in full force and effect.


                                  ARTICLE VII

                                 MISCELLANEOUS

                  7.1 Signatories: All checks, drafts or other orders for the
payment of money, notes or other evidences of indebtedness issued in the name
of the corporation shall be signed by such officer or officers or such other
person or persons as the Board of Directors may from time to time designate.

                  7.2 Seal: The seal of the corporation shall be in such form
and shall have such content as the Board of Directors shall from time to time
determine.

                  7.3 Notice and Waiver of Notice: Whenever any notice of the
time, place or purpose of any meeting of the stockholders, directors or a
committee is required to be given under the law of the State of Delaware, the
Certificate of Incorporation or these by-laws, a waiver thereof in writing,
signed by the person or persons entitled to such notice, whether before or
after the holding thereof, or actual attendance at the meeting in person or, in
the case of any stockholder, by his attorney-in-fact, shall be deemed
equivalent to the giving of such notice to such persons.

                  7.4 Indemnity: The corporation shall indemnify its directors,
officers and employees to the fullest extent allowed by law, provided, however,
that it shall be within the discretion of the Board of Directors whether to
advance any funds in advance of disposition of any action, suit or proceeding,
and provided further that nothing in this section 7.4 shall be deemed to
obviate the necessity of the Board of Directors to make any determination that
indemnification of

                                       9




the director, officer or employee is proper under the circumstances because he
has met the applicable standard of conduct set forth in subsections (a) and (b)
of Section 145 of the Delaware General Corporation Law.

                  7.5 Fiscal Year: Except as from time to time otherwise
determined by the Board of Directors, the fiscal year of the corporation shall
end on                 .


                                       10