@inbook {Pansters 2014c,
	title = {The Secret of Silence. Spiritual concentration as theological concern},
	booktitle = {Krijn Pansters (ed.), The Carthusians in the Low Countries. Studies in monastic history and heritage},
	series = {Miscellanea Neerlandica, 43 / Studia Cartusiana, 4},
	year = {2014},
	pages = {57-69},
	address = {Leuven},
	keywords = {quies, silentium, solitudo},
	author = {Krijn Pansters}
}
