Philosophical Investigations Into the Essence of Human Freedom
F. W. J. Schelling
Tocqueville, Lieber, and Bagehot: Liberalism Confronts the World
David Clinton
The Earth Chronicles Expeditions
Zecharia Sitchin
Wie soll es weitergehen?
Sebastian Friebel
Advances in Real-Time Rendering
Natalya Tatarchuk
CK-12 Geometry
Ck-12 Foundation