@article {37152,
	title = {The factors influencing cone penetrometer resistance as a measure of compaction in minespoils. In : Proceedings of the Conference, Reclamation, a global perspective, held in Calgary, Alberta, Canada, August 27-31, 1989, compiled by D. G. Walker, C. B. Pow},
	volume = {RRTAC 89-2},
	year = {1989},
	pages = {617-625},
	institution = {Alberta Land Conservation and Reclamation Council (Reclamation Research Technical Advisory Council)},
	author = {Thacker, D. J. and Johnson, R. L.}
}
