Nguyễn Văn Thu, A characterization of some probability distributions, In: Lecture Note in Math. 828 (1980), 302 - 308
Ngô Việt Trung, Über allgemeine Hyperflächenschnitte einer algebraischen Varietät, Monatsh. Math. 89 (1980), 323 - 340
Ngô Việt Trung, Spezialisierungen allgemeiner Hyperflọchenschnitte und Anwendungen, In: Seminar D. Eisenbud - B. Singh - W. Vogel, Vol. I, Teubner-Verlag, Leipzig, 1980, 4 - 43
Ngô Việt Trung, Some criteria for Buchsbaum modules, Monatsh. Math. 90 (1980), 331 - 337
Hoàng Tụy, Three improved versions of Scarf's method using conventional subsimplices and allowing restart and continuation procedures, Math. Oper. Stati. Ser. Optim. 11 (1980), 347 - 365
Hoàng Tụy, Solving equations 0(f(x)) under general boundary conditions, In: Numerical Solution of Highly Nonlinear Problems, (W. Forster ed.), North-Holland, (1980), 271 - 296
Nguyễn Văn Thoại, Hoàng Tụy, Convergent algorithms for minimizing a concave function, Math. Oper. Research 5 (1980), 556 - 566
Nguyễn Văn Thoại, Hoàng Tụy, Solving the linear complementarity problem via concave programming, In: Methods of Operations Research, (R.E. Burkard and T. Ellinger eds.), 1980, 175 - 178
Trần Đức Vân, Elliptic equations of infinite order with arbitrary nonlinearities and corresponding function spaces, Math. Sb., 113 (155) (1980), 245 - 262; English transl.: Math. USSR Sb., 41 (1982), 203 - 216
Trần Đức Vân, A boundary value problem for infinite-order nonlinear ordinary differential equations with rapidly [slowly] increasing coefficients, Differ. Uravn. 16 (1980), 1037 - 1046 (in Russian). English transl.: Differential Equations 16 (1980)
Trần Đức Vân, Resolubilite des problemes aux limites pour des equations non lineaires elliptiques d'ordre infini, C. R. Acad. Sc. Paris 290 (1980), 501 - 504
Trần Đức Vân, Solvability of boundary value problems for degenerate nonlinear differential equations of infinite order, Differ. Uravn. 16 (1980), 1805 - 1863; English transl.: Differential Equations 16 (1980), 1202 - 1211
Trần Đức Vân, Nontriviality of Sobolev-Orlicz spaces of infinite order in a bounded domain of Euclidean space, Dokl. Akad. Nauk SSSR 250 (1980), 1331 - 1334; English transl.: Soviet Math. Dokl. 21 (1980), 335 - 338
Trần Đức Vân, Traces of functions from Sobolev-Orlicz of infinite order and inhomogenous boundary value problem, Dokl. Akad. Nauk SSSR 254 (1980), 1357 - 1361; English transl.: Soviet Math. Dokl. 22 (1980), 626 - 630
Trần Đức Vân, The theory of nonlinear differential equations of infinite order and corresponding function spaces, Dr. Sc. Thesis, Institute of Math., USSR Academy of Sciences, Novosibirsk, 1980, 230 p (in Russian).
Hà Huy Vui, Sur les points doptimum de Pareto local à determination finie ou infinie, C. R. Acad. Sci. Paris Serie A, 290 (1980), 685 - 688
Korobov. V. I, Nguyễn Khoa Sơn, Controllability of linear systems in a Banach space in the presence of constraints on controls, I, Differ. Uravnenia 16 (1980), 806 - 817 (in Russian).
Korobov. V. I, Nguyễn Khoa Sơn, Controllability of linear systems in a Banach space in the presence of constraints on controls, II, Differ. Uravnenia 16 (1980), 1010 - 1022 (in Russian).
Nguyễn Khoa Sơn, $\sigma$ controllability of linear autonomous systems with constraints on controls, Differ. Uravnenia 16 (1980), 394 - 404 (in Russian).