@book{id_7913,
author = "Lagally, Max",
title = "Über orthogonale Kurvensysteme in der Ebene",
year = "1919",
address = "München",
publisher = "Verl.d.Bayer.Akad.d.Wiss.",
series = "Sitzungsbericht der Bayerischen Akademie der Wissenschaften",
volume = "1919,8.",
url = "http://publikationen.badw.de/de/003395411",
}