1. A. I. Prilepko and D. G. Orlovskii, “Determination of the Evolution Equation Parameter and Inverse Problems of Mathematic Physics,” Differ. Uravn. 23 (8), 1343–1353 (1987).
2. A. I. Prilepko and D. G. Orlovskii, “Semigroup Approach to Determining an Inhomogeneous Term in Evolution Equations,” Dokl. Akad. Nauk SSSR 305, 1045–1049 (1989).
3. Yu. Ya. Belov, Inverse Problems for Partial Differential Equations (VSP, Utrecht, 2002).
4. Yu. Ya. Belov and S. A. Kantor, Weak Approximation Method (Izdat. Tsentr Krasnoyar. Gos. Univ., Krasnoyarsk, 1999) [in Russian].
5. N. N. Yanenko, Fractional Step Method for Solving Multidimensional Problems of Mathematical Physics (Nauka, Novosibirsk, 1967) [in Russian].