@Book{Haushofer1885,
author  = "Haushofer, Karl",
title   = "Beiträge zur mikroskopischen Analyse",
year    = "1885",
address = "München",
series  = "Sitzungsberichte",
volume  = "1885,16",
url     = "https://publikationen.badw.de/en/003391697",
}