38. (with A.M. Sasonkin) “Duality in optimal control problems for neutral type systems with applications to controllability and observability. Part II”, Depon. VINITI, No. 5267-80, Moscow, 1980, 35 pp. (Russian; summary in Izvest. Akad Nauk BSSR. Ser. Fiz. Mat. Nauk, No. 3, 1981, 122)

37. (with A.M. Sasonkin) “Duality in optimal control problems for neutral type systems with applications to controllability and observability. Part I”, Depon. VINITI, No. 5266-80, Moscow, 1980, 40 pp. (Russian; summary in Izvest. Akad. Nauk BSSR. Ser. Fiz. Mat. Nauk, No. 3, 1981, 121)

36. “Stability and discrete approximations of optimal control systems”, in the 8th USSR Meeting on Control Problems, Tallin, 1980, 94-96.

35. (with V.P. Selchonok) “Computation of control algorithms for the groundwater regime and parameters of hydroreclamation systems”, Trudy BelNII Melior. Vodn. Khoz. 28 (1980), 229-240. (Russian)

34. (with A.Y. Kruger) “Generalized normals and derivatives, and necessary optimality conditions in nondifferentiable programming. Part II”, Depon. VINITI, No. 497-80, Moscow, 1980, 60 pp. (Russian; summary in Vestnik Beloruss. Univ. Ser. I, No. 2, 1980, 72)

33. (with A.Y. Kruger) “Generalized normals and derivatives, and necessary optimality conditions in nondifferentiable programming. Part I”, Depon. VINITI, No. 408-80, Moscow, 1980, 50 pp. (Russian; summary in Vestnik Beloruss. Univ. Ser. I No. 2, 1980, 72)

32. “A variational approach to controllability and observability of linear dynamical systems”, C. R. Acad. Bulgare Sci. 33 (1980), 1325-1328.

31. “Some properties of multivalued mappings and differential inclusions with applications to existence theorems in optimal control”, Depon. VINITI, No. 3268-80, Moscow, 1980, 39 pp. (Russian; summary in Izvest. Akad. Nauk BSSR. Ser. Fiz. Mat. Nauk, No. 4, 1981, 134)

30. “Necessary optimality conditions for discrete and differential inclusions”, in International Conference on Mathematical Methods in Operations Research, Bulgarian Academy of Science, Sofia, 1980, 70-71.

29. (with V.I. Savikovsky) “Controllability of linear systems in a class of unbounded impulse actions”, Izvest. Akad. Nauk BSSR. Ser. Fiz. Mat. Nauk, No. 5, 1980, 34-41. (Russian; English summary)

28. (with A.Y. Kruger) “Extremal points and the Euler equation in nonsmooth optimization”, Dokl. Akad. Nauk BSSR 24 (1980), 684-687. (Russian; English summary)

27. (with V.M. Raketsky) “Necessary optimality conditions of the maximum principle type in discrete approximations of nonconvex optimal control systems with state constraints”, Depon. VINITI, No. 791-79, Moscow, 1979, 38 pp. (Russian; summary in Vestnik Beloruss. Univ. Ser. I, No. 3, 1980, 72-73)

26. (with A.Y. Kruger) “New necessary optimality conditions in nondifferentiable programming”, in Numerical Methods in Nonlinear Programming, Kharkov Univ. Press, 1979, 116-119. (Russian)

25. (with S.B. Gorelik) “Necessary optimality conditions for singular controls and existence theorems in optimization problems for dynamical systems with delay in state”, Depon. VINITI, No. 4324-79, Moscow, 1979, 47 pp. (Russian; summary in Izvest. Akad. Nauk BSSR. Ser. Fiz. Mat. Nauk, No. 5, 1980, 129)

24. “Metric approximations and necessary optimality conditions for general classes of nonsmooth extremal problems”, Dokl. Akad. Nauk SSSR 254 (1980), 1072-1076. (Russian; English transl. in Soviet Math. Dokl. 22 (1980), 526-530)

23. (with V.P. Selchonok) “Optimal neutralization of rain and evaporation in automatized hydroreclamation systems”, Konstr. Rastch. Osush. Uvlazh. Sist. 4 (1979), 6-15. (Russian)

22. (with V.P. Selchonok) “Computation of the time-optimal control for the groundwater regime in automatized hydroreclamation systems”, Kostr. Rastch. Osush. Uvlazh. Sist. 3 (1978), 12-18. (Russian) 2

21. (with V.M. Zubetz and V.P. Selchonok) “Automatic control of the water regime in hydroreclamation systems”, Trudy BelNII Melior. Vodn. Khoz. 26 (1978), 3-10. (Russian)

20. (with A.M. Sasonkin) “On the duality theory in control systems”, Differen. Uravn. 14 (1978), 1371-1380. (Russian; English transl. in Diff. Equations 14 (1978), 975-981)

19. “Value convergence of discrete approximations for a class of optimal control problems”, Izvest. Akad. Nauk BSSR. Ser. Fiz.-Mat. Nauk, No. 3, 1978, 46-51. (Russian; English summary)

18. (with M.A. Dubov) “On the controllability theory for linear stochastic systems”, Differen Uravn. 14 (1978), 2265-2268. (Russian; English transl. in Diff. Equations 14 (1978), 1609-1612)

17. (with A.Y. Kruger) “Minimization of nonsmooth functionals in optimal control problems” Izvest. Akad. Nauk SSSR. Ser. Tekhn. Kibern., No. 4, 1978, 176-182. (Russian; English transl. in Eng. Cybernetics 16 (1978), 126-133)

16. “Difference approximations of optimal control systems”, Prikl. Mat. Mekh .42 (1978), 431-440. (Russian; English transl. in J. Appl. Math. Mech. 42 (1978), 452-461)

15. (with M.A. Dubov) “On stochastic controllability of linear dynamical systems”, Depon. VINITI, No. 1400-78, Moscow, 1978, 15 pp. (Russian; summary in Izvest. Akad. Nauk BSSR. Ser. Fiz. Mat. Nauk, No. 5, 1978, 132)

14. “Existence of optimal controls”, Itogi Nauki Tech. Sovr. Prob. Mat. 6 (1976), 207-261. (Russian; English transl. in J. Soviet Math. 7 (1977), 850-886)

13. (with V.P. Selchonok) “Time-optimal control of the groundwater regime”, Trudy BelNII Melior. Vodn. Khoz. 25 (1977), 29-33. (Russian)

12. “Approximations and the maximum principle in nonsmooth optimal control problems”, Uspekhi Mat. Nauk 32 (1977), 263-364. (Russian)

11. (with A.Y. Kruger) “Necessary optimality conditions in terminal control problems with non-functional constraints”, Dokl. Akad. Nauk BSSR20 (1976), 1064-1067. (Russian; English summary)

10. (with V.P. Selchonok) “Optimal control of the water level in hydroreclamation channels”,Vodn. Khoz. 6 (1976), 51-58. (Russian)

9. “Maximum principle in problems of time-optimal control with nonsmooth constraints”, Prikl. Mat. Mekh. 40 (1976), 1014-1023. ( Russian; English transl. in J. Appl. Math. Mech. 40 (1976), 960-969)