HUANG, Zhenzhen. Study on Overburden Failure and Surface Sinkhole Development Law during Extra-Thick Coal Seam Mining beneath Thick Unconsolidated Layers. International Journal of Natural Resources and Environmental Studies, [S. l.], v. 8, n. 5, p. 121–127, 2026. DOI: 10.62051/ijnres.v8n5.15. Disponível em: https://ojs.ijnres.org/index.php/IJNRES/article/view/6182. Acesso em: 10 aug. 2026.