@inbook {De Grauwe 1988e,
	title = {Lettre aux participants du VIIIe Congr{\`e}s international, le 25 octobre 1986},
	booktitle = {Margrit Fr{\"u}h, J{\"u}rg Ganz \& Robert F{\"u}rer (eds.), Die Kart{\"a}user im 17. und. 18. Jahrhundert. Akten des VIII. internationalen Kongresses f{\"u}r Kart{\"a}userforschung},
	series = {Ittinger Schriftenreihe},
	number = {3},
	year = {1988},
	pages = {463-465},
	address = {Ittingen},
	keywords = {Picard Jean [historiographus]},
	author = {De Grauwe, Jan}
}
