Nadler, R. , Petzold, K. and Schönduwe Diplom-Geograph, R. (2015) “Doing Online Surveys in Socio-scientific Regional Studies: Issues and Experiences”, Raumforschung und Raumordnung | Spatial Research and Planning, 73(3), pp. 203–217. doi:10.1007/s13147-015-0341-z.