Basic Helicopter Aerodynamics
J. Seddon
Fundamentals of Analog Circuits
Thomas L. Buchla & David. Floyd
Die doppelte Paula
Theo & Klara
Principals of Helicopter Aerodynamics, 2nd Edition
J. Gordon Leishman
Cambridge Aerospace Series (1)
Power Transformers, Principles and Applications
John J. Winders
Power Engineering Series (1)