Fribourg: les maisons médiévales (XIIe-XIVe siècles) sous l'angle du reflet architectural des différnces sociales - Bourgarel, Gilles (Centre, region, periphery. (2) Medieval Europe Basel 2002. 2. Sections 4 and 5. [3rd International Conference of Medieval and Later Archaeology. Preprinted papers]., 2002)