@book{justhis6749,
           title = {Trait{\'e} {\'e}l{\'e}mentaire de droit civil belge. Principes, doctrine, jurisprudence. IV. Les principaux contrats usuels},
          author = {H. De Page},
         address = {Bruxelles},
       publisher = {Bruylant},
            year = {1943},
             url = {http://www.just-his.be/eprints/6749/}
}