@misc{RoggeFreyStrassneretal.2015,
  author    = {Rogge, N. and Frey, U. and Strassner, C and Theesfeld, I.},
  title     = {Categorizing Urban Commons - Collective Action in Urban Gardens. Im Rahmen der 1st IASC Thematic Conference on Urban Commons. Track 1: Where do the urban commons come from? Bologna, Italy, 06-07.11.2015},
  year      = {2015},
  language  = {en}
}