@inproceedings{PODS-1995-PagelSW,
	author        = "Bernd-Uwe Pagel and Hans-Werner Six and Mario Winter",
	booktitle     = "{Proceedings of the 14th Symposium on Principles of Database Systems}",
	doi           = "10.1145/212433.212458",
	isbn          = "0-89791-730-8",
	pages         = "86--94",
	publisher     = "{ACM Press}",
	title         = "{Window Query-Optimal Clustering of Spatial Objects}",
	year          = 1995,
}