@inproceedings{SIGMOD-1998-SeidlK,
	author        = "Thomas Seidl and Hans-Peter Kriegel",
	booktitle     = "{Proceedings of the 28th ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD98/P154.PDF",
	doi           = "10.1145/276304.276319",
	isbn          = "0-89791-995-5",
	pages         = "154--165",
	publisher     = "{ACM Press}",
	title         = "{Optimal Multi-Step k-Nearest Neighbor Search}",
	year          = 1998,
}