@book{justhis5053,
           title = {Le probl{\`e}me de l'{\'e}volution noire : l'Afrique centrale dans cent ans},
          author = {Paul Salkin},
         address = {Paris},
       publisher = {Payot},
            year = {1926},
        keywords = {Congo, Congo belge, soci{\'e}t{\'e}, organisation},
             url = {http://www.just-his.be/eprints/5053/}
}