1. The phenomena of rupture and flow in solids;Griffith;Philos. Trans. R. Soc. Lond. - Ser. A Contain. Pap. a Math. or Phys. Character,1921
2. Fracture and strength of solids;Orowan;Rep. Prog. Phys.,1949
3. Strong Solids;Kelly,1986
4. The Mechanical Properties of Matter;Cottrell,1981
5. Fracture of Structural Materials;Tetelman,1967