@article {31568,
	title = {Post conference contribution : the 1963 G. C. O. S. Test Shaft. Presented at the AOSTRA Seminar on Underground Excavation in oil sands, Edmonton, May 19, 1978, edited by M. B. Dusseault},
	volume = {Paper No. 13},
	year = {1978},
	institution = {Alberta Oil Sands Technology and Research Authority},
	author = {Hardy, R. M. and Scott, J. D.}
}
