@book{justhis2403,
           title = {Introduction au code constitutionnel belge. La constitution belge},
          author = {Edouard Eug{\`e}ne Fran{\cc}ois Descamps},
         address = {Leuven},
       publisher = {Peeters},
            year = {1887},
        keywords = {Constitution Grondwet},
             url = {http://www.just-his.be/eprints/2403/}
}