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Natural SciencesChemistryGeologyElemental AnalysisPetrologyCoal GeologyCoal Ash CompositionCoal GeochemistryCoal Mineral MatterCoal PetrologyCoal Structure
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J. K. Brown · Journal of the Chemical Society (Resumed) · 1955 · 124 citations
T. W. Żerda, A. John, Kazimierz Chmura · Fuel · 1981 · 80 citations