Einstein, H.H., and Baecher, G.B. (1983). Probabilistic and statistical methods in engineering geology. Specific methods and examples part I: Exploration. Rock Mechanics and Rock Engineering, 16 (1), 39-72. doi:10.1007/BF01030217
Einstein, H.H., and Baecher, G.B. (1983). Probabilistic and statistical methods in engineering geology. Specific methods and examples part I: Exploration. Rock Mechanics and Rock Engineering, 16 (1), 39-72. doi:10.1007/BF01030217