@article {30471,
	title = {Major rock slides in the Rockies},
	volume = {13},
	year = {1976},
	pages = {8-20},
	publisher = {Canadian Geotechnical Journal },
	url = {http://article.pubs.nrc-cnrc.gc.ca/RPAS/RPViewDoc?_handler_=HandleInitialGet\&calyLang=eng\&journal=cgj\&volume=13\&articleFile=t76-002.pdf},
	author = {Cruden, D. M.}
}
