Heirbout, D.  (2007).  Thirteenth-century legislation on mortmain alienations in Flanders and its influence upon France and England. In A. D. E.  Lewis, Brand, P. A., & Mitchell, P. (Red.), Law in the city. Proceedings of the seventeenth British Legal History Conference, London, 2005 (pp. 54-71). Dublin: Four Courts Press.