@misc{_Vogels_[1937-1944],
 copyright={Public Domain},
 address={Gotha},
 journal={Vogels Karte von Mitteleuropa. Fliegerkarte},
 howpublished={online},
 year={[1937-1944]},
 publisher={Justus Perthes},
 language={ger},
 type={Image},
 title={Vogels Karte von Mitteleuropa. Fliegerkarte},
}