LE, N.-K.; TRAN, V.-N.; NGUYEN, V.-H. Some applications of directional subdifferentials at infinity to vector optimization problems. HPU2 Journal of Science: Natural Sciences and Technology, [S. l.], v. 5, n. 01, p. 76–86, 2026. DOI: 10.56764/hpu2.jos.2026.5.01.76-86. Disponível em: https://sj.hpu2.edu.vn/index.php/journal/article/view/579. Acesso em: 29 apr. 2026.