1. A competitive algorithm for three servers;Berman,1990
2. New results on server problems;Chrobak,1990
3. M. Chrobak and L. Larmore, An optimal on-line algorithm for trees, SIAM J. Comput., to appear.
4. M. Chrobak and L. Larmore, A new approach to the server problem, submitted.
5. D. Coppersmith, P. G. Doyle, P. Raghavan and M. Snir, Random walks on weighted graphs and applications to on-line algorithms, manuscript.