@article {journals/sigecom/VakaliAP01,
	title = {Internet based auctions: a survey on models and applications},
	journal = {SIGecom Exchanges},
	volume = {2},
	number = {2},
	year = {2001},
	pages = {6-15},
	author = {Athena Vakali and Angelis, Lefteris and Pournara, Dimitra}
}