@misc{Meisenheimer_Johannes_(1873–1933)_Geschlecht_1921,
 author={Meisenheimer, Johannes (1873–1933)},
 copyright={Public Domain},
 address={Jena},
 howpublished={online},
 year={1921},
 publisher={Verlag von Gustav Fischer},
 language={ger},
 title={Geschlecht und geschlechter im tierreiche. Bd. 1},
 URL={http://rcin.org.pl/Content/70169/PDF/WA488_91800_203758_Meiseheimer.pdf},
 keywords={Animals - Sex and gender, Animal physiology, Animals - Relationships, Sex in the animal kingdom, Natural relationships between animals, Research on sexuality},
}