1. Deformation and Fracture Mechanics of Engineering Materials;Hertzberg,1976
2. Lecture Notes on “Fracture Mechanics”;Irwin,1979
3. A fracture mechanics approach to failure analyses of concrete materials;Modeer;Rep. TVBM-1001,1979
4. Influence of micro-structure on fracture propagation of rock;Hoagland;Rock Mech.,1973
5. A micro-crack model and its significance to hydraulic fracturing and fracture toughness testing;Schmidt,1980