au.\*:("KOHOUT DL")
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DEEP-CORE INVESTIGATION OF LOW-SULFUR COAL POSSIBILITIES IN SOUTHEASTERN OHIO.STRUBLE RA; COLLINS HR; KOHOUT DL et al.1971; OHIO., DIV. GEOL. SURV., REP. INVEST.; USA; 1971, NUM. 0081, P. 1 A 29Miscellaneous
