Citation: Laf. Dutcher et Jc. Crelling, History of applied coal petrology in the United States I. Early history ofthe application of coal petrography in the steel industry, INT J COAL, 42(2-3), 2000, pp. 93-101
Authors:
Han, ZW
Kruge, MA
Crelling, JC
Bensley, DF
Citation: Zw. Han et al., Classification of torbanite and cannel coal I. Insights from petrographic analysis of density fractions, INT J COAL, 38(3-4), 1999, pp. 181-202