@inproceedings{ZhaZhaSch15,
  title = {Distinguishing Cause from Effect Based on Exogeneity},
  booktitle = {Fifteenth Conference on Theoretical Aspects of Rationality and Knowledge},
  pages = {261--271},
  editors = {Ramanujam, R.},
  year = {2015},
  author = {Zhang, K. and Zhang, J. and Sch{\"o}lkopf, B.}
}