A Jungle of Stars - Short Story
Jack L. Chalker
Der Atem der Sonne
Franke, Herbert W.
The Man Who Tapped the Secrets of the Universe
Glenn Clark
Sky Lift
Robert A. Heinlein
All Fourths Tuning for Jazz Guitar
Yasser Mattar
Morphisms and Categories: Comparing and Transforming
Jean Piaget & Gil Henriques & Edgar Ascher & Terrance Brown