Unbounded Components in the Solution Sets of Strictly Quasiconcave Vector Maximization Problems. - T. N. Hoa; N. Q. Huy; T. D. Phuong; Nguyen Dong Yen (J. Glob. Optim., 2007)

Optimal Control Problems Governed by Fractional Differential Equations with Control Constraints. - Bui Trong Kien; Vladimir E. Fedorov; T. D. Phuong (SIAM J. Control. Optim., 2022)