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Forschung
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Possibilities of air and space research in West Germany
Methods of aeronautical research
Kraftfahrtechnische forschungsarbeiten No. 8
Kraftfahrtechnische Forschungsarbeiten no. 7
Jahrbuch 1932 der Deutschen Versuchsanstalt fuer Luftfahrt, E.V., Berlin-Adlershof
German Aeronautical Experiment Station (D.V.L.) at the International Aviation Show (Ila)