@Book{Sohncke1894,
author  = "Sohncke, Leonhard",
title   = "Ungewöhnliche mikroskopische Bilder",
year    = "1894",
address = "München",
series  = "Sitzungsberichte",
volume  = "1893,10",
url     = "https://publikationen.badw.de/en/003392635",
}