@ARTICLE {
	AUTHOR = "Sergio Ochoa and Jos{\'e} A. Pino and Fabian Poblete",
	TITLE ="Estimating Software Projects based on Negotiation",
	JOURNAL = "Journal of Universal Computer Science",
	VOLUME = "15",
	NUMBER = "9",
	PAGES = "1812-1832",
	MONTH = "Sep",
	YEAR = "2009",
	PUBLISHER = "Graz University of Technology",
	ADDRESS = "Graz, Austria",
	ISSN = "0948-695X"
	}