1. Vũ Ngọc Phát, New results on controllability of linear nonstationary systems with constrained controls and states., In: Proc. of 14th Inter. Conference on Math. Optimization and Applications, Eisenach, FRG, December 11-16, 1989, 92 - 103.
2. Vũ Ngọc Phát, Controllability of linear discrete-time systems with multiple delays on controls and states, International Journal of Control, 5 (1989), 1645 - 1654.
3. Ngô Việt Trung, Shin Ikeda, When is the Rees algebra Cohen-Macaulay?, Communications in Algebra, 17 (12) (1989), 2893 - 2922.
4. Ngô Việt Trung, Giuseppe Valla, The Cohen-Macaulay type of points in generic position, Journal of Algebra, 125 (1989), 110 - 119
5. Đinh Nho Hào, Finite difference method for an optimal control problem of quantum processes, Acta Mathematica Vietnamica, 14 (1989), N$^o$ 2, 3 - 11
6. Nguyễn Đông Yên, Trinh Cong Dieu, On local controllability of nondifferentiable discrete-time systems with nonconvex constraints on controls., Optimization, 20 (1989), 189 - 199.
7. Lê Tuấn Hoa, Algorithmetical aspects of the problem of classifying multi-projections of Veronese varieties, Manuscripta Mathematica, 63 (1989), 317-331.
8. Nguyễn Quốc Thắng, On the determination of multiplicators of similitudes over local and global fields, Journal of the Faculty of Science. University of Tokyo. Section IA. Mathematics, 36 (1989), 789 - 802.
9. Some integral transformations with a Macdonald function in the kernel, In: Current Analysis and Its Applications, Naukova Dumka, Kiev, 1989, 16 - 22 (in Russian).
10. On the pseudodifferential operators with real analytic symbols and their applications, J. Fac. Sci. Univ. Tokyo, Sect. IA, 36 (1989), No 3, 803 - 825
11. A note on the fixed-point set for multivalued mappings, Acta Math. Vietnam. 14 (1989), 101 - 103
12. On minimal models of algebraic curves, Matem. Sb. 180 (1989), 625 - 634 (in Russian).
13. On the automorphisms of the Fermat curve, Vestnik Mosk. Univ. 1989, 23 - 26
14. Minimal models of algebraic curves over global fields, Ph. D. Thesis, Moscow State University, 1989
15. Le comportement geometrique a l infini des polynomes de deux variables complexes, C. R. Acad. Sci. Paris, Serie 1, 309 (1989), 183 - 186
16. Sur la fibration globale des polynomes de deux variables complexes, C. R. Acad. Sci. Paris, Serie 1, 309 (1989), 231 - 234
17. On local controllability of nondifferentiable discrete-time systems with nonconvex constraints on controls, Optimization 20 (1989), 189 - 199
18. Optimal state estimation for a stochastic dynamical system from point process observations, Methods Oper. Research, 1989, 421 - 430