1. Timoshenko SP (1953) History of the strength of materials, McGraw Hill, New York
2. Irwin GR, Wells AA (1965) A continuum mechanics view of crack propagation. Metal Rev 10:223–270
3. Galileo Galilei L (1638) Discorsi e Dimostrazioni Matematiche intorno àdue Nuove Scienze, Elsevirii, Leiden;English transl. by Weston T, London (1730), pp. 178–181
4. Mariotte E (1686) Traitédu mouvement des eaux, posthumously edited by M de la Hire;transl. by Desvaguliers JT, London (1718), p. 249;also Mariotte's collected works, 2nd edn., The Hauge, 1740
5. Griffith AA (1921) The phenomena of rupture and flow in solids. Phil Trans Royal Soc Lond A221:163–198