@BOOK {
	EDITOR = "Lu{\'{\i}}s Carri{\c{c}}o and Nelson Baloian and Benjamin Fonseca",
	TITLE = "Proceedings of the 15th Collaboration Researchers' International Workshop on Groupware (CRIWG)",
	MONTH = "Sep",
	YEAR = "2009",
	ADDRESS = "Peso da Regua, Portugal",
	PUBLISHER = "Springer-Verlag",
	ISBN = "978-3-642-04215-7",
	SERIES ="Lecture Notes in Computer Science",
	NUMBER = "5784",
	}