@book{43568,
	author = {Safety-Critical Systems Symposium and Redmill, Felix.},
	title = {Practical elements of safety :},
	publisher = {Springer,},
	year = {c2004.},
	address = {London ;},
	note = {"Safety-Critical Systems Club."},
	url = {http://www.loc.gov/catdir/enhancements/fy0818/2003067387-t.html}
}