Mayton-AG; Dubreuil-F; Saltsman-RD
Washington, DC: U.S. Department of the Interior, Bureau of Mines, Contract AC01-81FE00080, 1982 Mar; :1-16
Sixteen longwall questionnaires were received from operators and two additional longwalls were added to the questionnaire file. Data from questionnaires were tabulated and analyzed. Relevant coal mining publications were reviewed for longwall references a ...
CP; Final Contract Report
NTIS Accession No.
Washington, DC: U.S. Department of the Interior, Bureau of Mines, Contract AC01-81FE00080
Bituminous Coal Research