@article {7115,
	title = {Die {\"a}lteste Einf{\"u}hrungs- und Einb{\"u}rgerungsgeschichte des Erigeron canadensis},
	journal = {Bot. Arch},
	volume = {34},
	year = {1932},
	month = {1932///},
	pages = {394 - 418},
	author = {K. Wein}
}
