@misc{_N_[1943], copyright={Public Domain}, address={Gotha}, journal={Vogels Karte von Mitteleuropa. Fliegerkarte}, howpublished={online}, year={[1943]}, publisher={Justus Perthes}, language={ger}, title={N 33 - NW Rostock}, type={Image}, URL={http://www.rcin.org.pl/igipz/Content/210144/PDF/WA51_195982_PANC61-3-r1943_N-33-NW-Rostock_0001.pdf}, }