@BOOK {
	EDITOR = "Alexandre Bergel and Noury Bouraqadi",
	TITLE = "Proceedings of the 4th International Workshop on Smalltalk Technologies (IWST)",
	MONTH = "Aug",
	YEAR = "2009",
	ADDRESS = "Brest, France",
	PUBLISHER = "ACM Press",
	ISBN = "978-1-60558-899-5",
	NOTE = "ACM Digital Library",
	}