@book{32615,
	author = {Walter, Heinrich,},
	title = {Grundlagen der Pflanzenverbreitung :},
	publisher = {E. Ulmer},
	year = {c1960.},
	series = {Einführung in die Phytologie,},
	address = {Stuttgart,},
	edition = {2. umgearb. Aufl.}
}