@unpublished{justhis1290,
           title = {De arresthuizen in Belgi{\"e}},
          school = {Universiteit Gent. Faculteit in Letteren en Wijsbegeerte},
          author = {J. Aertssen},
            year = {1980},
        keywords = {prison	penitentiary jail	gevangenis
},
             url = {http://www.just-his.be/eprints/1290/}
}