@article {36347,
	title = {Coal quality variation in the Cadomin-Luscar coalfield, Alberta},
	volume = {ESR 1989-01},
	year = {1989},
	pages = {65},
	institution = {Alberta Research Council},
	author = {Langenburg, W. and MacDonald, D. and Kalkreuth, W. and Strobl, R.}
}
