@InProceedings{Yianilos93,
  author = 	 "Peter N. Yianilos",
  title = 	 "Data Structures and Algorithms for Nearest Neighbor
		  Search in General Metric Spaces",
  booktitle =	 "Proceedings of the Fifth Annual ACM-SIAM Symposium on
		  Discrete Algorithms (SODA)",
  year =	 1993
}