@inproceedings{KP94a,
  title = "On the {$k$}-server conjecture",
  author = "E. Koutsoupias and C. Papadimitriou",
  year = "1994",
  address = "Montreal, Quebec, Canada",
  booktitle = "Proceedings of the Twenty-Sixth Annual ACM Symposium on the Theory of Computing",
  month = "23--25 may",
  pages = "507--511",
}