@article {41882,
	title = {Cheviot Mine Project supplemental information. Volume I. Part B. underground mining at Cheviot site. Appendix 5. Comparative analysis of the economics of underground versus surface mining at the  Cheviot Project Site},
	year = {1999},
	institution = {Robertson Hale Economics for Cardinal River Coals Ltd. },
	address = {Calgary, AB},
	author = {Hale, Kerrie M.}
}
