G. Buttazzo and P. Kogut, Weak optimal controls in coecients for linear elliptic problems, Revista Matematica Complutense, vol.24, p.8394, 2011.

D. Cioranescu and F. Murat, A strange term coming from nowhere, in the book Topic in the Math. Modelling of Composit Materials, Boston, Birkh"auser, Prog. Non-linear Di, Equ.Appl, vol.31, pp.49-93, 1997.

C. D'apice, U. De-maio, and O. P. Kogut, Optimal control problems in coecients for degenerate equations of monotone type: Shape stability and attainability problems, SIAM J. on Control and Optimization, vol.50, issue.3, p.11741199, 2012.

P. Drabek, A. Kufner, and F. Nicolosi, Non linear elliptic equations, singular and degenerate cases, 1996.

L. C. Evans and R. F. Gariepy, Measure Theory and Fine Properties of Functions, 1992.

L. C. Evans, Weak convergence methods for nonlinear partial dierential equations, CBMS Regional Conference Series in Mathematics, vol.74, 1990.

T. Horsin and P. Kogut, Optimal L 2 -Control Problem in Coecients for a Linear Elliptic Equation, Mathematical Control and Related Fields

P. I. Kogut, On Approximation of an Optimal Boundary Control Problem for Linear Elliptic Equation with Unbounded Coecients, Discrete and Continuous Dynamical Systems -Series A, vol.34, issue.5, p.21052133, 2014.

P. I. Kogut and G. Leugering, Optimal L 1 -Control in Coecients for Dirichlet Elliptic Problems: H-Optimal Solutions, vol.31, p.3153, 2012.

P. I. Kogut and G. Leugering, Optimal L 1 -Control in Coecients for Dirichlet Elliptic Problems: W -Optimal Solutions, Journal of Optimization Theory and Applications, vol.150, issue.2, p.205232, 2011.

P. I. Kogut and G. Leugering, Matrix-valued L 1 -optimal controls in the coecients of linear elliptic problems, Zeitschrift f ur Analysis und ihre Anwendungen, vol.32, p.433456, 2013.

P. I. Kogut and G. Leugering, Optimal Control Problems for Partial Dierential Equations on Reticulated Domains: Approximation and Asymptotic Analysis, Birkh auser, 2011.

O. P. Kupenko, Optimal control problems in coecients for degenerate variational inequalities of monotone type. I. Existence of optimal solutions, J. Computational and Appl. Mathematics, vol.106, issue.3, p.88104, 2011.

O. P. Kupenko, Optimal control problems in coecients for degenerate variational inequalities of monotone type. II. Attainability problem, J. Computational and Appl. Mathematics, vol.107, issue.1, p.1534, 2012.

J. Lions, Optimal Control of Systems Governed by Partial Dierential Equations, 1971.

J. Lions, Some methods of Solving Non-Linear Boundary Value Problems, Dunod-Gauthier-Villars, 1969.

K. A. Lurie, Optimum control of conductivity of a uid moving in a channel in a magnetic eld, J. Appl. Math. Mech, vol.28, p.316327, 1964.

B. Muckenhoupt, Weighted norm inequalities for Hardy maxymal function, Trans.Amer.Math.Soc, vol.165, p.207226, 1972.

O. Pironneau, Optimal Shape Design for Elliptic Systems, 1984.

V. V. Zhikov, Weighted Sobolev spaces, issue.8, p.2758, 1998.

V. V. Zhikov and S. E. Pastukhova, Homogenization of degenerate elliptic equations, Siberian Math. Journal, No, issue.1, p.80101, 2006.

V. V. Zhikov, Remarks on the uniqueness of a solution of the Dirichlet problem for second-order elliptic equations with lower-order terms, Functional Analysis and Its Applications, vol.38, issue.3, 2004.