@inproceedings{DL-1997-KetchpelGP,
	author        = "Steven P. Ketchpel and Hector Garcia-Molina and Andreas Paepcke",
	booktitle     = "{Proceedings of the Second ACM International Conference on Digital Libraries, July 25-28, 1997, Philadelphia, PA, USA}",
	cdrom         = "DL1997/P065.pdf",
	doi           = "10.1145/263690.263795",
	isbn          = "0-89791-868-1",
	pages         = "65--74",
	publisher     = "{ACM}",
	title         = "{Shopping Models: A Flexible Architecture for Information Commerce}",
	year          = 1997,
}