SINTHUSAI, L.; TRAKARNPRUK, W.; STRAUSS, R. Ziegler-Natta catalyst with high activity and good hydrogen response. Journal of Metals, Materials and Minerals, Bangkok, Thailand, v. 19, n. 2, 2017. Disponível em: https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/232. Acesso em: 25 apr. 2024.