@Book{Günther1911,
author  = "Günther, Siegmund",
title   = "Durchlöcherte Berge und orographische Fenster",
year    = "1911",
address = "München",
series  = "Sitzungsberichte",
volume  = "1911,13",
url     = "https://publikationen.badw.de/en/003395706",
}