1. Krajcinovic, D.: Damage mechanics. Amsterdam: Elsevier 1997.
2. Krajcinovic, D.: Damage mechanics. Mech. Mater.8, 117?197 (1989).
3. Nemat-Nasser, S., Hori, M.: Micromechanics, overall properties of heterogeneous materials. Amsterdam: North-Holland 1993.
4. Kachanov, M.: Elastic solids with many cracks and related problems. In: Advances in applied mechanics, vol.30 (Hutchinson, J. W., Wu, T. W. eds.), pp. 259?428. New York: Academic Press 1993.
5. Budiansky, B., O'Connell, R. J.: Elastic moduli of a cracked solid. Int. J. Solids Struct12, 81?92 (1976).