@book {8562,
	title = {Diplotaxis},
	year = {1993},
	month = {1993///},
	pages = {346 - 362},
	publisher = {Madrid},
	organization = {Madrid},
	author = {J.B. Laborde}
}
@book {8554,
	title = {Problems concerning Rudbeckia laciniata (Asteraceae) in Europe. Fragm. Flor. Geobot},
	year = {1993},
	month = {1993///},
	pages = {289 - 297},
	publisher = {Suppl. 2},
	organization = {Suppl. 2},
	author = {J. Jalas}
}
