Dirkzwager, Anja J. E., und Leonel Gonçalves. „Imprisonment in Europe: An Overview of Current and Up-To-Date Prison Research“. Kriminologie - Das Online-Journal | Criminology - The Online Journal, Bd. 2, Nr. 2, Juni 2020, S. 130-3, doi:10.18716/ojs/krimoj/2020.2.1.