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The story of Rhein Control : the operation of ATC in Southgermany's upper airspace : 1957-1977 | Fischer, Frank W. | 2010 | |
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Wirtschaftsfaktor Bundeswehr - das Jagdbombergeschwader 33 in Cochem/Mosel | Klophaus, Richard; Heuer, Kai; Schaper, Thorsten | 2007 |