@phdthesis{theses_frw579,
          author = {T.M. Schram},
           title = {Nudging de Zelforganisatie},
            year = {2018},
             url = {https://frw.studenttheses.ub.rug.nl/579/},
        abstract = {Hoe kunnen nudges zelforgniserend gedrag in de openbare ruimte sturen?}
}