Continuous Selections, Collectively Fixed Points and Weak Knaster-Kuratowski-Mazurkiewicz Mappings in Optimization. - Phan Quoc Khanh; Vo Si Trong Long; Nguyen Hong Quan (J. Optim. Theory Appl., 2011)

Invariant-point theorems and existence of solutions to optimization-related problems. - Phan Quoc Khanh; Vo Si Trong Long (J. Glob. Optim., 2014)

On topological existence theorems and applications to optimization-related problems. - Phan Quoc Khanh; Lai-Jiu Lin 001; Vo Si Trong Long (Math. Methods Oper. Res., 2014)

A new notion of error bounds: necessary and sufficient conditions. - Vo Si Trong Long (Optim. Lett., 2021)

An Invariant-Point Theorem in Banach Space with Applications to Nonconvex Optimization. - Vo Si Trong Long (J. Optim. Theory Appl., 2022)

On global well-posedness of semi-infinite set optimization problems. - Tran Quoc Duy; Vo Si Trong Long (Comput. Appl. Math., 2023)

On Global Error Bounds for Convex Inequalities Systems. - Vo Si Trong Long (J. Optim. Theory Appl., 2024)

Qualitative Properties of k-Center Problems. - Vo Si Trong Long; Nguyen Mau Nam; Jacob Sharkansky; Nguyen Dong Yen (J. Optim. Theory Appl., 2025)