@ARTICLE {
	AUTHOR = "Davide Vega and Roc Meseguer and Felix Freitag and Sergio Ochoa",
	TITLE ="Understanding Collaboration in Volunteer Computing Systems",
	JOURNAL = "Journal of Universal Computer Science",
	VOLUME = "20",
	NUMBER = "13",
	PAGES = "1738-1765",
	YEAR = "2014",
	PUBLISHER = "Graz University of Technology",
	ADDRESS = "Graz, Austria",
	ISSN = "0948-695X"
	}