@book{justhis5902,
           title = {Essai sur la l{\'e}gislation {\'e}conomique de la Belgique de 1830 {\`a} 1880},
          author = {J. Schaar},
         address = {Bruxelles},
       publisher = {Weissenbruch},
            year = {1880},
             url = {http://www.just-his.be/eprints/5902/}
}