TRAN, M. T.; NGUYEN, M. N. Proportional Topology Optimization algorithm with virtual elements for multi-material problems considering mass and cost constraints. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 45, n. 4, p. 334–357, 2023. DOI: 10.15625/0866-7136/19613. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/19613. Acesso em: 12 may. 2024.