AUTHOR=Han Shuang Biao TITLE=Gas-bearing evaluation of deep coal rock in the Yan’an gas field of the Ordos Basin JOURNAL=Frontiers in Earth Science VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2024.1438834 DOI=10.3389/feart.2024.1438834 ISSN=2296-6463