HauertS03'

@article{DBLP:journals/complexity/HauertS03,
  author    = {Christoph Hauert and
               Gy{\"o}rgy Szab{\'o}},
  title     = {Prisoner's dilemma and public goods games in different geometries:
               Compulsory versus voluntary interactions},
  journal   = {Complexity},
  volume    = {8},
  number    = {4},
  year      = {2003},
  pages     = {31-38},
  ee        = {http://dx.doi.org/10.1002/cplx.10092},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}