Chong, K.P., Li, V.C., and Einstein, H.H. (1989). Size effects, process zone and tension softening behavior in fracture of geomaterials. Engineering Fracture Mechanics, 34 (3), 669-678. doi:10.1016/0013-7944(89)90129-X
Chong, K.P., Li, V.C., and Einstein, H.H. (1989). Size effects, process zone and tension softening behavior in fracture of geomaterials. Engineering Fracture Mechanics, 34 (3), 669-678. doi:10.1016/0013-7944(89)90129-X