Environmental risk assessment in coal mining with methane degassingGregorio Fidalgo-Valverde, Agustín Menéndez-Díaz, Alicja Krzemień, Pedro Riesgo-Fernández and Antonio Luis Marqués SierraMATEC Web Conf., 389 (2024) 00039DOI: https://doi.org/10.1051/matecconf/202438900039