@inproceedings{bakkes:fdg14b,
  title = "Design Criteria for Challenge Balancing of Personalised Game Spaces",
  author = "Sander Bakkes and Shimon Whiteson",
  year = "2014",
  booktitle = "FDG 2014: Proceedings of the Ninth International Conference on the Foundations of Digital Games",
  month = "April",
  note = "Short paper.",
  url = "http://www.cs.ox.ac.uk/people/shimon.whiteson/pubs/bakkesfdg14b.pdf",
}