A Beginner's Guide to Mathematical Logic
Raymond M. Smullyan
Twistors and Killing Spinors on Riemannian Manifolds
Helga Baum
The Phraseological View of Language: A Tribute to John Sinclair
John McHardy Sinclair
What Is Tao?
Alan W. Watts
Wissensgraphen - Die Revolution in der Finanzdienstleist[..]
Semantic Web Company
Principles of Knowledge Representation and Reasoning: Proceedings ...
Jon Doyle & Erik Sandewall & Pietro Torasso
Representations of Commonsense Knowledge
Ernest Davis