@book{550587,
	author = {JJ Kalker and Cannon, D. F.},
	title = {Rail quality and maintenance for modern railway operation :},
	publisher = {Kluwer Academic Publishers,},
	year = {c1993.},
	address = {Dordrecht ;},
	note = {Papers from the International Conference on Rail Quality and Maintenance for Modern Railway Operations, held in June 1992 at the Technical University, Delft.},
	url = {http://www.loc.gov/catdir/enhancements/fy0822/93000893-t.html}
}