@book{justhis6057,
           title = {Copropri{\'e}t{\'e} et propri{\'e}t{\'e} divis{\'e}e},
          author = {P. Veldekens and P. Demeur},
         address = {Bruxelles},
       publisher = {Larcier},
            year = {1935},
             url = {http://www.just-his.be/eprints/6057/}
}