@book{justhis5572,
           title = {Trait{\'e} pratique de la loi du 15 mai 1922 sur l'acquisition et la perte de la nationalit{\'e}},
          author = {Alfred Balsacq},
         address = {Luttre},
       publisher = {Office international d'{\'e}ditions},
            year = {1922},
             url = {http://www.just-his.be/eprints/5572/}
}