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Characterization of organic fractions in solvent-refined coal by quantitative n.m.r. spectroscopyDavid L. Wooton; William M. Coleman; Larry T. Taylor; Harry C. Dorn · 1978
Minor and trace metal analysis of a solvent-refined coal by flameless atomic absorptionWilliam M. Coleman; Peggy Szabo; David L. Wooton; Harry C. Dorn; Larry T. Taylor · 1977