LÊ , C. K.; NGUYỄN , T. L.; NGUYỄN , . M. Đức C. Solving the problem of electric generator units combination with multiple fuel option using lagrange multiplier theory. Journal of Technical Education Science, [S. l.], v. 8, n. 3, p. 10–16, 2013. Disponível em: https://www.jte.edu.vn/index.php/jte/article/view/741. Acesso em: 7 apr. 2026.