@article {1991,
	title = {Norbert en de reliekenvinding te Keulen, 12/13 oktober{\textendash}24 november 1121},
	journal = {Analecta Praemonstratensia},
	volume = {67},
	year = {1991},
	pages = {23-41},
	author = {Grauwen, Wilfried M.}
}
