@book{id_11913,
author = "Drygalski, Erich von",
title = "Spitzbergens Landformen und ihre Vereisung",
year = "1911",
address = "München",
series = "Abhandlungen",
volume = "Bd. 25, Abhandlung 7",
url = "http://publikationen.badw.de/de/003071237",
}