@book{4181,
	author = {Vliet, Hans van.},
	title = {Software engineering : principles and practice },
	publisher = {John Wiley,},
	year = {2000.},
	address = {Chichester [England] ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/bios/wiley043/00028992.html}
}