Mariño-Martínez, J.E. et al. 2016. Degasification possibilities evaluation in Socotá coal mines (Boyacá, Colombia). Revista Facultad de Ingeniería. 25, 43 (Sep. 2016), 59–71. DOI:https://doi.org/10.19053/01211129.v25.n43.2016.5298.