@InCollection{grossi:crosstrees,
  author = {Roberto Grossi and Giuseppe F. Italiano},
  title = {Efficient Cross-trees for External Memory},
  booktitle = {External Memory Algorithms and Visualization},
  editor = {James Abello and Jeffrey Scott Vitter},
  crossref = {abello:dimacs},
  year = {1999},
  series = {DIMACS Series in Discrete Mathematics and Theoretical Computer
  Science},
  pages = {87--106},
  publisher = {American Mathematical Society Press},
  address = {Providence, RI},
  keywords = {out-of-core algorithm, data structure, pario-bib},
  comment = {See also the component papers vitter:survey, arge:lower,
  crauser:segment, grossi:crosstrees, toledo:survey. Not clear to what extent
  these papers are about *parallel* I/O.}
}