ZHANG, Yongkun; WANG, Kaiwei. Optimization Analysis of Advanced Support for Thick and Hard Roof. International Journal of Natural Resources and Environmental Studies, [S. l.], v. 5, n. 1, p. 73–80, 2025. DOI: 10.62051/ijnres.v5n1.10. Disponível em: https://wepub.org/index.php/IJNRES/article/view/5176. Acesso em: 21 jul. 2026.