Optimality conditions and duality for continuous-time programming with multiple interval-valued objective functions. - Le Thanh Tung; Dang Hoang Tam (Comput. Appl. Math., 2022)

Necessary and Sufficient Optimality Conditions for Fuzzy Variational Problems of Several Dependent Variables in Terms of Fuzzy Granular Derivatives. - Le Thanh Tung; Dang Hoang Tam (Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2023)