Les libertés urbaines et rurales du XIe au XIVe siècle. (Brussel : Pro Civitate, 1968)
Colloque international, Spa 5-8 IX 1966: actes
Internationaal colloquium, Spa 5-8 IX 1966: handelingen
Keywords: Municipal corporations -- Congresses -- Europe; Charters -- Congresses; Law, Medieval -- Congresses; Cities and towns -- History -- Europe