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United Nations. Department Of Economic & Social Affairs. Population Division
An Introduction to the Mathematical Theory of Inverse Problems
Andreas Kirsch
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Robert Bauval & Graham Hancock
Introducing Philosophy
The Open University
Christentum und Gnosis: Aufsätze
Walther Eltester
A Unifying Field in Logics: Neutrosophic Logic. Neutrosophy, ...
Florentin Smarandache