1. White, L.W. “Point Control: Approximations of Parabolic Problems and Pseudo Parabolic Problems”, Appl. Anal. 12(4), 251–263 (1981).
2. Lyashko, S.I. “Solvability of Pseudoparabolic Equations”, Izv. Vyssh. Uchebn. Zaved. Mat., №9. 71–72 (1985).
3. Lyashko, S.I., Man’kovskiǐ, A.A. “Optimal Impulse Control of a System with Distributed Parameters of Hyperbolic Type”, Dokl. Akad. Nauk Ukrain. SSR Ser. A, 4, 69–71 (1983).
4. Lyashko, S.I., Man’kovskiǐ, A.A. “Simultaneous Optimization of Impulse Moments and Intensities in Control Problems for Parabolic Equations”, Cybernetics 19(5), 687–690 (1984).
5. Translations of Math. Monograpfs;AV Fursikov,2000