@article {8054,
	title = {Die Berberis der Section Wallichianae},
	journal = {Mitt. Deutsch. Dendrol. Ges},
	volume = {55},
	year = {1942},
	month = {1942///},
	pages = {1 - 60},
	author = {C. Schneider}
}
@article {8006,
	title = {La flore adventice de la r{\'e}gion de Verviers},
	journal = {Lejeunia},
	volume = {6},
	year = {1942},
	month = {1942///},
	pages = {99 - 119},
	author = {A. Vis{\'e}}
}
