@article {Becker 1991,
	title = {Kart{\"a}user, Kart{\"a}userinnen. III. Liturgie},
	journal = {Lexikon des Mittelalters},
	volume = {5},
	year = {1991},
	pages = {1020-1021},
	keywords = {liturgia},
	author = {Becker, Hansjakob}
}
