@article {R{\"u}thing 1974b,
	title = {Kalkbrenner (Gerard, Calcificis, Hamontanus)},
	journal = {Dictionnaire de spiritualit{\'e}},
	volume = {8},
	year = {1974},
	pages = {1653-1657},
	keywords = {biographiae, Gerardus Kalckbrenner O.Cart. (biographia)},
	author = {Heinrich R{\"u}thing}
}
