@inbook {De Backer 1999,
	title = {Tintenrezepte aus den Kart{\"a}userkl{\"o}stern Regensburg-Pr{\"u}ll, D{\"u}lmen, K{\"o}ln, Li{\`e}ge und J{\"u}lich, 16. bis 18. Jahrhundert},
	booktitle = {James Hogg (ed.), Die Kart{\"a}user und das Heilige R{\"o}mische Reich. Internationaler Kongress vom 9.-11. September 1997, Bezirksklinikum in der Kartause Pr{\"u}ll},
	series = {Analecta Cartusiana},
	volume = {2},
	number = {140:2},
	year = {1999},
	pages = {105-112},
	address = {Salzburg},
	keywords = {D{\"u}lmen O.Cart. (praescripta atramentorum), K{\"o}ln O.Cart. (praescripta atramentorum), Li{\`e}ge O.Cart. (praescripta atramentorum), Pr{\"u}ll O.Cart. (praescripta atramentorum), Vogelsang O.Cart. (praescripta atramentorum), Weddern O.Cart. > D{\"u}lmen O.Cart.},
	author = {De Backer, Christian}
}
