@article{490873, author = {Redmond, Steve. and Romero, Victor.}, url = {http://library.usi.edu/record/490873}, title = {2011 rapid excavation and tunneling conference proceedings / [electronic resource] :. Rapid Excavation and Tunneling Conference}, publisher = {Society for Mining, Metallurgy, and Exploration, Inc.,}, recid = {490873}, pages = {xv, 1,592 p. :}, address = {Englewood, Colo. :}, year = {2011}, }