Proceedings 1987 Rapid Excavation and Tunneling Conference, New Orleans, Louisiana, June 14-18, 1987 - Rapid Excavation and Tunneling Conference (8th : 1987 : New Orleans, La.); American Institute of Mining, Metallurgical, and Petroleum Engineers; American Society of Civil Engineers (Littleton, Colo. Society of Mining Engineers, 1987)
Keywords: Excavation -- Congresses; Tunneling -- Congresses; Underground construction -- Congresses