@inbook {Nissen 2008,
	title = {Topography of solitude. Places of silence in early Carthusian spirituality},
	booktitle = {Hein Blommestijn, Charles Caspers, Rijcklof Hofman, Frits Mertens, Peter Nissen \& Huub Welzen (eds.), Seeing the seeker: explorations in the discipline of spirituality. A Festschrift for Kees Waaijman on the occasion of his 65th birthday},
	series = {Studies in spirituality. Supplements},
	number = {19},
	year = {2008},
	pages = {201-213},
	address = {Leuven, Paris \& Dudley (MA)},
	keywords = {cella, silentium, solitudo},
	attachments = {http://cartusiana.org./sites/default/files/Nissen_Topography\%20of\%20solitude.PDF},
	author = {Nissen, Peter}
}
