VU, Cuong. Multi-material proportional topology optimization using hybrid threshold interpolation. <b>Vietnam Journal of Science and Technology</b>, Hanoi, VN, v. 63, n. 3, p. 608–618, 2025. DOI: 10.15625/2525-2518/19336. Disponível em: https://vjs.ac.vn/jst/article/view/19336. Acesso em: 10 jan. 2026.