@Book{Lorch1909,
author  = "Lorch, Wilhelm",
title   = "Die Polytrichaceen. Eine biologische Monographie",
year    = "1909",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 23, Abth. 3 = [8]",
url     = "https://publikationen.badw.de/en/003071208",
}