EXHIBIT 10.5




                                BROKER AGREEMENT



Prime Core AG
Gotthardstrasse 3
CH-6300 Zug                                     (hereinafter called "AG")

and

Dr. Roland Schoneberg
Am Klausenberg 52
51109 Koln                                     (hereinafter called "Broker")


                        herewith enter into the following contractual agreement:


1.   Scope of Activities:

Effective April 1, 1997, Broker will begin  representing AG as independent agent
in the Federal  Republic  of  Germany,  within the  specific  geographical  area
assigned to him.

Broker  will be active as broker  and  agent in the  Investment  and  Securities
business,  on behalf of AG or other  entities  designated  by AG. This  activity
encompasses  the  procurement  of  contracts,  for  the  purchase  and  sale  of
securities and stock and commodity  options  issued by AG or third parties,  and
the solicitation of potential clients for such business.

It  is  explicitly   understood   that  Broker's   choice  of  investments   for
recommendation  to  potential  buyers  is his  alone.  AG will  not  assume  any
liability with respect to any investment advise issued by Broker.

Broker may use his own  literature  and  collateral if needed and employ his own
personnel and resources as required in the course of his activities.

In  conducting  his  business  Broker may elect to utilize  the  facilities  and
personnel resources of an office services company, specifically

                                 Telecom GmbH .

In such case Broker  agrees to pay a rental fee, on account of all  transactions
which resulted from utilizing the resources of the office services company.  For
that purpose, a separate rental and service agreement is required. Broker is not
authorized to enter into any commission  business,  either in his own name or on
account of AG.


2.   Business Conduct:

Broker will apply all normal and usual care in safeguarding  the interests of AG
in all respects.

He is required to conduct his  marketing  and  solicitation  efforts in a manner
which does not create any obligations or liabilities for AG,  particularly  with
respect to making unrealistic  promises for profits or failing to disclosure the
risks  for  loss.   Broker   understands   that  the  enticement  to  securities
transactions  of  uninformed  investors  who are not  fully  informed  about the
associated risks, is considered a punishable offense subject to prosecution.

Broker may dispense information and give advice only after a thorough assessment
of the  situation.  Where such  information  is  obtained  through or from third
parties, he is obliged to state so in all communication to clients.

He is required to especially point out the speculative  nature of the investment
which he recommends.  He furthermore  must refrain from making a comparison with
any other  form of  investments  which is subject to  regulatory  oversight,  in
particular the German stock market, or stocks of other companies.

Clients  have  to  be  fully  and  truthfully   informed  about  all  applicable
administrative   charges  (commission  expenses,   cost  and  fee  structure  in
connection with proprietary AG-Options).

Broker  agrees to pass on to AG all orders for  purchase  or sale which meet the
criteria  established  for a valid trade  (i.e.  all  forms/contracts  have been
executed,  the client received the information  brochure, he has been advised of
the risks associated with this type of investment).

3.   Legal Points:

Broker has been  specifically  advised that fraudulent and deceitful actions and
the inducement to the  speculation in securities  are  punishable  offenses.  He
confirms  that he has not  previously  been  indicted  or  punished  for  fraud,
inducement to the speculation in securities, or other similar offenses.

He  furthermore  confirms  that he is not  currently  subject to legal action or
discovery in connection with such offenses,  and that he will immediately notify
AG if and when such occurs in the future.


4.   Responsibilities of Broker:

Broker will observe absolute  confidentiality with regard to all aspects of AG's
business which may come to his attention;  this obligation  extends also for the
time  after  termination  of his  relationship  with  AG,  with  respect  to all
information of confidential or proprietary nature.

Confidential  information  includes the marketing concepts of AG, as well as all
facts and data  pertaining  to customers of AG. Broker is required to forward to
AG all applicable data about customers which he may have obtained in discussions
with the customer,  especially any  information  with regard to such  customers'
financial  circumstances,  prior to the  execution of any business  transaction.
Transactions  which are  financed  solely by or through  third  parties,  should
generally be declined.

Broker may not enter into any contracts, either in his own name, or on behalf of
AG.

In all cases,  the current General Terms and Conditions of AG apply. The current
version of these Terms and Conditions is attached to this Agreement.


5.   Responsibilities of  AG:

AG will - through an office services company - provide to Broker the support and
infrastructure required for conducting this business.

In  particular,  such  support  includes  the  needed  documents  for this  type
business,  literature and sales collateral  brochures,  market information,  and
account  statements issued by brokerage houses with whom AG transacts  business.
Broker is required to verify the accuracy of all such records.

All  records and  materials  must be  returned  to AG upon  termination  of this
Agreement, immediately and without special request.


6.   Commissions:

Broker is entitled to a commission on all business  resulting from his activity,
entered  into  during the  duration of this  Agreement.  The  commission  amount
depends upon the particular  investment (see below) and is ultimately determined
between  the  parties  hereto at the end of each  year.  Broker  will  receive a
monthly draw against the annual commission, in the amount of

                                    DM 65,000

payable to a bank account of Broker's choice.

AG is  required to issue  credit at the end of a given year for all  commissions
accrued to Broker,  and to  immediately  transfer  to such  account  the balance
remaining  after  deducting the monthly draw  payments.  Such credit and payment
must be made no later than March 31 of the following year.

Broker is entitled to commissions only after

a) AG's Administrative  Agreement,  duly executed by customer, has been returned
to and received by AG;

b)  an order confirmation signed by customer is available; and

c) the customer has made payment for the transaction (if by check, upon credit),
and funds have been received.

The preliminary  earned monthly  commissions  (see above) are paid to Broker per
check on the 5th  workday  of the  month  following  the month  during  which an
invoice has been rendered (any deviation from this rule must be explained).

Any claim of Broker for  commissions  or  advances  against  earned  commissions
expires 6 months after the event that gives rise to such claims. Any right of AG
for refund of  previously  paid  commissions  or draws expires 6 months after AG
became aware of the circumstances which justify a demand for such refund.

AG  specifically  advises  Broker that he personally is  responsible  to pay all
income-  and  social  taxes.  He  indemnifies  AG against  all  claims  from and
liabilities to any tax authorities or social pension providers.

 7.   Term:

This Agreement is valid until terminated.

Either of the two parties may terminate this Agreement effective with the end of
a calendar month,  with one month' notice,  and after three years effective with
the end of a calendar quarter with observation of a three months' notice.

Notwithstanding the above, both parties have the right to immediately  terminate
the Agreement for cause.

This  Agreement is subject to a trial period of three months during which either
party may terminate the Agreement without cause or notice.

Any termination, for cause or otherwise, must be done in writing.


8.   Miscellaneous:

Broker agrees that AG may sponsor  fictitious  transactions for test purposes in
which case it is authorized to listen in on relevant negotiations.

Broker is free to set his own working  hours.  Broker may  conduct his  business
from the facilities of an independent office services company recommended by AG,
however, is not obliged to do so.


9.   Other Conditions:

Any changes to this Agreement, including this clause, must be done in writing.

There are no verbal side agreements.

If any clause in this Agreement should be held invalid, this will not affect the
validity of the other clauses.  In such case, the parties are held to agree upon
a formula which meets the intent of the substituted  clause in the best possible
way.

The attached "Terms and Conditions for Business  Transacted by AG" are made part
of this Agreement.  Broker agrees that personal  information  available  through
public or commercial channels may be obtained, stored, transmitted,  and deleted
in the course of normal business.

Broker is prohibited from contacting any client of AG after  termination of this
Agreement.

All contracts are accepted and closed at the place of business of AG. Any action
or  proceeding  brought by either  party under this  Agreement  shall be brought
before a court at the place of business of AG.

AG has the right to also bring  action  against  Broker at a court  situated  at
Broker's location.


This Agreement is governed by Swiss Law.


Place of Business of AG: ________________________





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AG                                                Broker