@Book{Kaup1969,
author  = "Kaup, Burchard",
title   = "Ein Kriterium für platte holomorphe Abbildungen",
year    = "1969",
address = "München",
series  = "Sitzungsberichte",
volume  = "1968,7",
url     = "https://publikationen.badw.de/en/003384227",
}