@inproceedings{KMS02,
  title = "Approximate equilibria and ball fusion",
  author = "E. Koutsoupias and M. Mavronikolas and P. Spirakis",
  year = "2002",
  address = "Andros, Greece",
  booktitle = "Proceedings of the 9th International Colloquium on Structural Information and Communication Complexity (SIROCCO)",
  month = "10-12 jun",
  pages = "223--235",
}