@book{justhis3166,
           title = {Code de l'hygi{\`e}ne publique. T. I. Exercice des professions m{\'e}dicales (Codes administratifs publi{\'e}s par l'Institut belge des Sciences administratives)},
          author = {G. Lemaire and G. F{\'e}lix},
         address = {Bruxelles},
       publisher = {Larcier},
            year = {1939},
        keywords = {environnement environment milieu m{\'e}decine medicine geneeskunde sant{\'e} Gezondheid health hygi{\`e}ne Hygi{\"e}ne
Hygiene law wet loi},
             url = {http://www.just-his.be/eprints/3166/}
}