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Gero Madelung
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Aeronautical research in Germany
Ernst Heinrich Hirschel, Horst Prem, Gero Madelung · Springer London, Limited
694 sayfa · 2003
Aeronautics / Research / History / Aeronautics, research / Aeronautics, germany
Luftfahrtforschung in Deutschland
Ernst Heinrich Hirschel, Horst Prem, Gero Madelung · Bernard & Graefe
638 sayfa · 2001
Aeronautics / Research / History / Political aspects / Economic aspects