ZHAO, Y.; LI, P.; YIN, Q.; WANG, T. Application of Sliding-Block Reverse-Circulation Drilling Bit in Multi-Layer Goaf Detection. Journal of Mines, Metals and Fuels, [S. l.], v. 65, n. 12, p. 730–737, 2017. DOI: 10.18311/jmmf/2017/26945. Disponível em: https://www.informaticsjournals.com/index.php/jmmf/article/view/26945. Acesso em: 28 apr. 2024.