@inproceedings{skowron2017proportional,
  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)},
  pages     = {409--415},
  year      = {2017},
  doi       = {10.24963/ijcai.2017/58},
}