Vleeschouwers-Van Melkebeek, M.  (1995).  Mandatory celibacy and priestly ministry in the diocese of Tournai at the end of the Middle Ages. In J. - M.  Duvosquel & Thoen, E. (Red.), Peasants and Townsmen in Medieval Europe. Studia in honorem Adriaan Verhulst  (pp. 681-692). Gent: Snoeck-Ducaju .