Bruin, G. de. “A. De Lange, G. Schwinge, Pieter Valkenier Und Das Schicksal Der Waldenser Um 1700”. BMGN - Low Countries Historical Review 122, no. 4 (January 1, 2007). Accessed May 3, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107626.