@inbook {908,
	title = {Die Flechtenparasiten.},
	booktitle = {Kryptogamen-Flora von Deutschland, Ostererich und der Schweiz},
	number = {8},
	year = {1930},
	pages = {I-XI, 1-712},
	author = {Keissler, K.},
	editor = {Rabenhorst, L.}
}
