@article{justhis7330,
          volume = {5},
          number = {1},
           title = {Chartered companies and the development of the tin industry in Belgian Africa, 1900-1939},
          author = {John Hillman},
            year = {1997},
         journal = {African Economic History},
             url = {http://www.just-his.be/eprints/7330/}
}