@book{149628,
	author = {North American Tunneling Conference and Fowler, Matthew. and ebrary, Inc.},
	title = {North American Tunneling},
	publisher = {Society for Mining, Metallurgy and Exploration,},
	year = {c2012.},
	address = {Englewood, Colo. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10742696}
}