http://pec.lib.wvu.edu/record/P123591951Pressure drop in flow of dense coal-air mixtures.<p> Journal article reprint from:<em> Industrial and Engineering Chemistry</em>, v.43 (1951: Aug.).</p>Simons, H. P.Schmidt, L. D. (Lawrence Delos), 1901-Albright, Charles William, 1917-Holden, J. H.Coal-handling machinery.Conveying machinery.Coal, Pulverized.14256