Lester, A. E.  (2006).  Cares Beyond the Walls: Cistercian Nuns and the Care of Lepers in Twelfth- and Thirteenth-Century Northern France. In E.  Jamroziak & Burton, J. (Red.), Religious and laity in Western Europe. 1000-1400. Interaction, negotiation and power (Vol. 2, pp. 197-224). Turnhout: Brepols.