@inproceedings{kaltenbrunner2013IWSOS,
  author =	 {A. Kaltenbrunner and P. Arag\'{o}n and D. Laniado
                  and Y. Volkovich},
  title =	 {{Not all paths lead to Rome: Analysing the network
                  of sister cities}},
  booktitle =	 {Proceedings of the 7th International Workshop on
                  Self-Organizing Systems (IWSOS 2013)},
  publisher =	 {Springer},
  location =	 {Palma de Mallorca, Spain},
  year =	 2013,
}