@InProceedings{SCI:Kre1997a,
  author =    "M. van Kreveld and R. van Oostrum and C. Bajaj and
              V. Pascucci and D.R. Schikore",
  title =     "Contour Trees and Small Seed Sets for Isosurface
              Traversal",
  booktitle = "Proceedings of the 13th International Annual
              Symposium on Computational Geometry ({SCG}-97)",
  pages =     "212--220",
  year =      "1997",
  publisher = "ACM Press",
  address =   "New York",
  month =     "June",
  isbn =      "0-89791-878-9",
}