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3. A.N Tikhonov, Methods of solution to ill-conditioned problems, Nauka, Moscow, 1979 (in Russian).
4. G.I Vasilenko, Theory of signals recovery: about reduction to ideal instrument in physics and engineering, Sov Radio, Moscow, 1979 (in Russian).
5. V.A Granovskiy, Dynamic measurements: fundamentals of metrological support, Energoatomizdat, Leningrad, 1984 (in Russian).