@book{id_11817,
author = "Hertwig, Richard von",
title = "Ueber die Conjugation der Infusorien",
year = "1892",
address = "München",
publisher = "Verl. d. Akad.",
series = "Abhandlungen",
volume = "Bd. 17, Abth. 1 = [4]",
url = "http://publikationen.badw.de/de/003083049",
}