Die Reise des Elefanten
José Saramago
Advance Alpha 6 User Manual
Advance
Introductory Circuit Analysis
Robert L. Boylestad
NACA Report 824, Summary of Airfoil Data
Louis S. Stivers & Ira H. Abbott & E. von Doenhoff
Basic German Vocabulary
Heiko Bock
Langenscheidt Reference (1)