@book{justhis6442,
           title = {R{\'e}sum{\'e} du cours d'institutions rurales et de droit rural},
          author = {R. Ullens},
         address = {Hasselt},
       publisher = {Ceysens},
            year = {1905},
             url = {http://www.just-his.be/eprints/6442/}
}