@inproceedings{SAC-1997-Zhan,
	author        = "F. Benjamin Zhan",
	booktitle     = "{Proceedings of the 12th Symposium on Applied Computing}",
	doi           = "10.1145/331697.331738",
	pages         = "192--196",
	publisher     = "{ACM}",
	title         = "{Topological relations between fuzzy regions}",
	year          = 1997,
}