Quasi-contingent derivatives and studies of higher-orders in nonsmooth optimization. - Nguyen Xuan Duy Bao; Phan Quoc Khanh; Nguyen Minh Tung (J. Glob. Optim., 2022)

Higher-order set-valued Hadamard directional derivatives: calculus rules and sensitivity analysis of equilibrium problems and generalized equations. - Nguyen Minh Tung; Nguyen Xuan Duy Bao (J. Glob. Optim., 2022)

New Set-Valued Directional Derivatives: Calculus and Optimality Conditions. - Nguyen Minh Tung; Nguyen Xuan Duy Bao (J. Optim. Theory Appl., 2023)

New second-order limiting directional derivatives and C1-optimization. - Nguyen Minh Tung; Nguyen Xuan Duy Bao (Optim. Lett., 2023)

Second-Order Set-Valued Directional Derivatives of the Marginal Map in Parametric Vector Optimization Problems. - Nguyen Xuan Duy Bao; Phan Quoc Khanh; Nguyen Minh Tung (J. Optim. Theory Appl., 2025)