@inproceedings{SIGMOD-1991-BeckerSW,
	author        = "Bruno Becker and Hans-Werner Six and Peter Widmayer",
	booktitle     = "{Proceedings of the 21st ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD91/P128.PDF",
	doi           = "10.1145/115790.115805",
	pages         = "128--137",
	title         = "{Spatial Priority Search: An Access Technique for Scaleless Maps}",
	year          = 1991,
}