International Journal of Coal Geology · 1987 · 53 citations · 4 references
Microlithotype CompositionHardgrove GrindabilityGeochemistryEastern Kentucky CoalsCoal-water Slurry FuelCoal UtilizationMining Industry
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Mechanical properties of non-metallic brittle materials
Wear · 1959 · 139 citations
New concept for determining pulverizing properties of coal
S.F. Ścieszka · Fuel · 1985 · 13 citations