1. R. S. Rivlin and A. G. Thomas, J. Polym. Sci. 10, 291 (1953}).
2. A. A. Griffith, Philos. Trans. R. Soc. London, A 221, 163 (1920).
3. B. N. J. Persson and E. Brener, Phys. Rev. E: Stat. Phys., Plasmas, Fluids, Relat. Interdiscip. Top. 71, 036123 (2005).
4. B. N. J. Persson, O. Ahlbohr, G. Heinrich, and H. Ueba, J. Phys.: Condens. Matter 17, 1071 (2005).
5. Z. Major, Ch. Feichter, R. Steinberger, and R. W. Lang, Fracture of Nano and Engineering Materials and Structure, Ed. by E. E. Gdoutos (Springer, Dordrecht, 2006).