@Inproceedings{ijcai/proprank,
  author     = {Piotr Skowron and Martin Lackner and Markus Brill and Dominik Peters and Edith Elkind},
  title      = {Proportional Rankings},
  booktitle  = {Proceedings of the 26th International Joint Conference on Artificial Intelligence (IJCAI 2017)},
  year       = {2017},
  pages      = {409--415},
  publisher  = {ijcai.org},
}