@Article{CKN03,
  author =       {M. Chrobak and E. Koutsoupias and J. Noga},
  title =        {More on Randomized On-line Algorithms for Caching},
  journal =      {Theoretical Computer Science},
  year =         2003,
  volume =	 290,
  number =	 3,
  pages =        {1997--2008}
}