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\address 
Professor J. M. Varah
Department of Computer Science
University of British Columbia
6356 Agricultural Road
Vancouver, B.C. V6T 1W5
CANADA
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Dear Professor Varah:

	I have known Wolfgang Bibel for a number of years.  I have
been impressed with the variety of topics he works on and with his
independence of mind.  I am impressed with his work on connection
graphs and also with his approach to formalizing common sense
knowledge.

  I can't give a more precise evaluation of his
work, because I find much of it technically rather difficult
compared to the level of my interest in the topics.

I don't recall hearing him lecture, but I would think his systematic
approach to problems would make him a good lecturer and good at
supervising students.

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Sincerely,    

John McCarthy    
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%cc: Matthew Kahn
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%P.S.: whatever you wish to say here

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