BASIC AND APPLIED ROCK MECHANICS.
K. E. Gray, Richard L. Stowe, Donnie L. Ainsworth, S. J. Green, R. D. Perkins, Yeghishe M. Avedissian, Leonard E Wood, Yoginder Paul Chugh, H. Reginald Hardy, R. Stefanko, Edward E. Hornsey, George B. Clark, Jimmie L. Bratton, Howard R. Pratt
Abstract