@book{justhis2949,
           title = {Recueil m{\'e}thodique des dispositions l{\'e}gales concernant les poids et mesures, lois, arr{\^e}t{\'e}s, instructions},
         address = {Bruxelles},
            year = {1871},
        keywords = {commerce	trade; commercial	koophandel
law wet loi},
             url = {http://www.just-his.be/eprints/2949/}
}