Angels and Demons: What Do We Really Know About Them?
Peter J. Kreeft
Penrose Tiles to Trapdoor Ciphers: And the Return of Dr Matrix
Martin Gardner
Die Ars coniecturalis des Nikolaus von Kues
Josef Koch
Concepts, Ontologies and Knowledge Representation - Essay
Sanida Omerović
Poststructuralism And Postmarxism
Judith P. Butler
I Am
Jean Klein