KUMAR SHARMA, K.; PRASAD TRIPATHY, D. Design of illumination system in an opencast coal mine – a case study. Journal of Mines, Metals and Fuels, [S. l.], v. 68, n. 11&12, p. 362–371, 2021. DOI: 10.18311/jmmf/2020/27962. Disponível em: https://informaticsjournals.com/index.php/jmmf/article/view/27962. Acesso em: 28 mar. 2024.