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Two-lift longwall mining method for Mid-continent Resources, Inc.
Jaspal-JS; Reeves-JA Jr.; Bourquin-BJ
AIME Annual Meeting Chicago, Illinois, 1981 Feb; :217-221
AIME Annual Meeting, Chicago, Illinois, February 22, 1981
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division