@book{97714,
	author = {Jessen, Karl Friedrich Wilhelm},
	title = {Botanik der Gegenwart und Vorzeit in culturhistorischer Entwickelung},
	publisher = {Chronica Botanica},
	year = {1948.},
	series = {Pallas, v.l},
	address = {Waltham, Mass.},
	note = {Rerint of Leipzig, 1864 ed.}
}