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2. O. M. Alifanov and V. V. Mikhailov, “Solution of the nonlinear converse thermal conductivity problem by the iteration method,” Inzh.-Fiz. Zh.,35, No. 6, 1123–1129 (1978).
3. F. P. Vasil'ev, Lectures on Methods of Solving Extremal Problems [in Russian], Moscow State Univ. (1974).
4. E. Polak, Computational Methods in Optimization Methods, Academic Press (1971).
5. A. V. Lykov, Thermal Conductivity Theory [in Russian], Vysshaya Shkola, Moscow (1967).