@book{2321,
	author = {Weizsäcker, Carl Friedrich <<von>>},
	title = {<<Die>> Geschichte der Natur},
	publisher = {Vandenhoeck & Ruprecht},
	year = {1970},
	series = {Kleine Vandenhoeck-Reihe},
	address = {Göttingen},
	edition = {7. Aufl.}
}