@book{7864,
	author = {Vliet, Hans van.},
	title = {Software engineering : principles and practice},
	publisher = {Wiley,},
	year = {1997.  },
	address = {74},
	edition = {.  },
	url = {http://www.amazon.com/exec/obidos/ASIN/0470031468/chopaconline-20}
}