@book{35406,
	author = {Lowrie, Raymond L. and Society for Mining, Metallurgy, and Exploration (U.S.)},
	title = {SME mining reference handbook},
	publisher = {Society for Mining, Metallurgy, and Exploration,},
	year = {c2002.},
	address = {Littleton, Colo. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10742686}
}