Abandoned Mine Methane Development of the Upper Silesian Coal Basin in the Light of the New EU Regulation on Methane Emission Reduction in the Energy SectorJerzy Hadro, Janusz Jureczka, Grzegorz Suszka and Katarzyna StrzemińskaMATEC Web Conf., 389 (2024) 00085DOI: https://doi.org/10.1051/matecconf/202438900085