@TECHREPORT{terzis2004004,
	author = "S. Terzis and W. Wagealla and C. English and A. McGettrick and P. Nixon",
	title = "The SECURE collaboration model",
	institution = "SmartLab, Dept. of Computer and Information Sciences, University of Strathclyde",
	year = "2003",
	number = "2003-03",
	month = "December",
	url = "http://www.smartlab.cis.strath.ac.uk/Publications/techreports/Collaboration_Model.ps",
}