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                             Letter of reference
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by Dr. Hansruedi Früh, 17 December 1999
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(translated from German by myself)

Mr. Martin F. Krafft, born on 14 February 1979, resident at
Waldpromenade 36a in 82131 Gauting/München, Germany, worked for our company as
an intern in development and customer support between 16 August 1999 and 17
December 1999.

Mr. Krafft performed the following tasks:

* Development and improvement of our software product *NNetView for Windows*,
  a graphical development and experimentation environment for the simulation
  of neural networks.
* Representation of our company on fairs and exhibitions.
* Development of a Software Development Kit (SDK) for the programmatic control
  of up to 63 robots via radio links or cable, in cooperation with the author
  of the communication protocol. The SDK was developed in ANSI C++ for
  Windows and Unix/Linux systems.
* Introduction of customers and demonstration of the software *NNetView*, as
  well as our robotic platform *Samurai*.
* Maintenance and installation of several computers at our offices.
* Miscellaneous organisational activities.

These tasks were completed by Mr. Krafft with efficiency, resourcefulness,
enthusiam, and interest. His extensive experience with software development,
computers, and neural networks, in combination with his keen perception made
Mr. Krafft be a valuable and dependable asset for our company.

His friendliness and readiness to cooperate with others was very well received
with his colleagues.

We thank Mr. Krafft for his commitment to out company and would welcome him
back at any time.

.. class:: signature

signed Dr. Hansruedi Früh
Chief Executive Officer
Neuronics, Inc.