@inproceedings{ICPR-1996-LiTH,
	author        = "Shigang Li and Saburo Tsuji and Akira Hayashi",
	booktitle     = "{Proceedings of the 13th International Conference on Pattern Recognition}",
	doi           = "10.1109/ICPR.1996.546014",
	isbn          = "0-8186-7282-X",
	pages         = "176--180",
	publisher     = "{IEEE Computer Society}",
	title         = "{Qualitative representation of outdoor environment along route}",
	year          = 1996,
}