@Book{Günther1906,
author  = "Günther, Siegmund",
title   = "Neue Beiträge zur Theorie der Erosionsfiguren",
year    = "1906",
address = "München",
series  = "Sitzungsberichte",
volume  = "1905,18",
url     = "https://publikationen.badw.de/de/011783977",
}