William Paul Lundell  <br />Bartholomeus van Maastricht (1446) on Carthusian allegiance and unity during the Basel Schism,  in: Thomas E. Burman, Mark D. Meyerson & Leah Shopkow (eds.), Religion, text, and society in medieval Spain and Northern Europe. Essays in honor of J. N. Hillgarth, Toronto, 2002, 250-274 (= Papers in mediaeval studies , 16)<br />[Lundell 2002]