THIEU, Tran Vu. On two problems over polyhedral convex sets. Journal of Computer Science and Cybernetics, [S. l.], v. 1, n. 1, p. 9–15, 2015. DOI: 10.15625/1813-9663/1/1/6661. Disponível em: https://vjs.ac.vn/jcc/article/view/6661. Acesso em: 5 dec. 2025.