@inbook {2019,
	title = {Karl von der Salzgasse (gestorben 1213/14). K{\"o}lner Ritterb{\"u}rger und Ant des Zisterzienserklosters Villers-en-Brabant},
	booktitle = {Rheinische Lebensbilder},
	volume = {20},
	year = {2019},
	pages = {7-27},
	publisher = {B{\"o}hlau},
	organization = {B{\"o}hlau},
	address = {K{\"o}ln},
	isbn = {978-3-412-51705-2},
	author = {Schulz, Knut},
	editor = {R{\"o}nz, Helmut and Andre, Elsbeth}
}
