@InCollection{SCI:Van2004b,
  author =    "M.J. van Kreveld and R. van Oostrum and C.L. Bajaj
              and V. Pascucci and D.R. Schikore",
  title =     "Efficient contour tree and minimum seed set
              construction",
  booktitle = "Surface Topological Data Structures: An
              Introduction for Geographical Information
              Science",
  pages =     "71--86",
  year =      "2004",
  editor =    "Sanjay Rana and Jo Wood",
  publisher = "John Wiley \& Sons",
  month =     "May",
  note =      "UCRL-BOOK-200018",
}