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Performance evaluation of Automatic Extraction System. Volume V. Geotechnical investigations of the roof conditions in the area mined by the AES machine. Final technical report
Author(s) -
Z.T. Bieniawski,
F. Rafia,
David A. Newman
Publication year - 1980
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/5118564
Subject(s) - roof , mining engineering , coal mining , drilling , geotechnical engineering , consolidation (business) , geology , coal , engineering , civil engineering , waste management , mechanical engineering , accounting , business

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