Manual to Ontolingua

mikega@aciinfo1.zfe.siemens.de (Mike Gassmann)
Date: Fri, 19 Aug 94 09:45:08 +0200
From: mikega@aciinfo1.zfe.siemens.de (Mike Gassmann)
Message-id: <9408190745.AA18375@aciinfo1.zfe.siemens.de>
To: ontolingua@HPP.Stanford.EDU
Subject: Manual to Ontolingua
Hi!
Just one Question.
Where can I get a manual of Ontolingua?
I tried to work with the Version 4.0 hier at Siemens in Munich 
but I have no manual or guide through Ontolingua.
Thanx for help, mike :-)