1. Bensoussan, A., Lions, J. L., Papanicolaou, G.: Asymptotic analysis for periodic structures. Amsterdam: North-Holland 1978.
2. Lecture Notes in Physics;E. Sanchez-Palencia,1980
3. Lecture Notes in Physics;P. Suquet,1987
4. Mei, C. C., Auriault, J. L.: Mechanics of heterogeneous porous media with several spatial scales. Proc. Rov. Soc.A 426, 391?423 (1989).
5. Serra, J.: Image analysis and mathematical morphology. New York: Academic Press 1982.