@inproceedings{peters2016simplecauses,
  author={Peters, Dominik and Elkind, Edith},
  title     = {Simple Causes of Complexity in Hedonic Games},
  booktitle = {Proceedings of the Twenty-Fourth International Joint Conference on
               Artificial Intelligence, {IJCAI} 2015},
  pages     = {617--623},
  year      = {2015},
}