Công bố năm 1983
1. On periodic solution of nonlinear differential equations of infinite order II., Tạp chí Toán học 11 (1983), 1 - 7 (in Vietnamese).
2. On general transmission problems for overdetermined systems, Thông báo VKHVN, 1983, 66 - 76
3. Nonlinear differential equations and infinite-order function spaces, Izd. BGU, Minsk, USSR, 1983 (in Russian).
4. Note on a Wagner-Platens representation of solution of a general filtering stochastic differential equation, Acta Math. Vietnam. 8 (1983), 133 - 138
