@ARTICLE {
	AUTHOR = "Juan Rodriguez-Covili and Sergio Ochoa",
	TITLE ="A Lightweight and Distributed Middleware to Provide Presence Awareness in Mobile Ubiquitous Systems",
	JOURNAL = "Science of Computer Programming (SCICO)",
	VOLUME = "78",
	NUMBER = "10",
	PAGES = "2009-2025",
	MONTH = "Oct",
	YEAR = "2013",
	PUBLISHER = "Elsevier Science",
	ADDRESS = "Amsterdam, The Netherlands",
	ISSN = "0167-6423"
	}