@article {7661,
	title = {Revision of the genus Cosmos},
	journal = {Field Mus. Nat. Hist},
	volume = {8},
	year = {1932},
	month = {1932///},
	pages = {401 - 447},
	author = {E.E. Sherff}
}
@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}
}
@article {7048,
	title = {Generis Ononis L., revisio critica},
	journal = {Beih. Bot. Centralbl},
	volume = {49},
	year = {1932},
	month = {1932///},
	pages = {381 - 665},
	author = {G. _irjaev}
}
