@article{grouprecommendationsaxiomsimpossibilitie,
  title = {Group Recommendations: Axioms, Impossibilities, and Random Walks},
  author = {Omer Lev and Moshe Tennenholtz},
  year = {2017},
  eprint = {1707.08755},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1707.08755v1},
}