@inproceedings{CASE-2006-PiPS,
	author        = "Liang Pi and Yunpeng Pan and Leyuan Shi",
	booktitle     = "{Proceedings of the Second International Conference on Automation Science and Engineering}",
	doi           = "10.1109/COASE.2006.326911",
	isbn          = "1-4244-0310-3",
	pages         = "375--380",
	publisher     = "{IEEE}",
	title         = "{Nested Partitions Method for the Local Pickup and Delivery Problem}",
	year          = 2006,
}