@book{id_11849,
author = "Fedorov, Evgraf S.",
title = "Syngonielehre",
year = "1909",
address = "München",
series = "Abhandlungen",
volume = "Bd. 21, Abth. 1 = [1]",
url = "http://publikationen.badw.de/de/003071196",
}