@misc{Gengler_Josef_(1863–1931)_Materialien_1912,
 author={Gengler, Josef (1863–1931)},
 copyright={Public Domain},
 address={München},
 journal={Publications of famous biologists - a collection of prints},
 howpublished={online},
 year={1912},
 publisher={Gustav Fischer},
 language={ger},
 type={Text},
 title={Materialien zur bayerischen Ornithologie VII : Siebenter Beobachtungsbericht aus den Jahren 1909 und 1910},
 URL={http://www.rcin.org.pl/Content/75175/PDF/s291.pdf},
 keywords={Ornithology - VII observational report - 1909-1910 - Germany - Bavaria},
}