@Book{Günther(1901),
author  = "Günther, Siegmund",
title   = "Akustisch-geographische Probleme",
year    = "(1901)",
address = "München",
series  = "Sitzungsberichte",
volume  = "1901,13",
url     = "https://publikationen.badw.de/de/003896400",
}