@inproceedings{HKP97,
  title = "On the analysis of indexing schemes",
  author = "J. M. Hellerstein and E. Koutsoupias and C. H. Papadimitriou",
  year = "1997",
  address = "Tucson, Arizona",
  booktitle = "Proceedings of the Sixteenth ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems",
  month = "12--15 may",
  pages = "249--256",
}