Frank K. H. A. Dehne Arvind Gupta Jörg-Rüdiger Sack Roberto Tamassia Algorithms and Data Structures, 6th International Workshop, WADS '99, Vancouver, British Columbia, Canada, August 11-14, 1999, Proceedings WADS Lecture Notes in Computer Science 1663 Springer 1999 3-540-66279-0 db/conf/wads/wads99.html