AUTHOR=Yang Daming , Sun Yun , Xu Jiabo , Zhao Linshuang TITLE=Study on the evolution of fractures in overlying strata during repeated mining of coal seams at extremely close distances JOURNAL=Frontiers in Earth Science VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2024.1472939 DOI=10.3389/feart.2024.1472939 ISSN=2296-6463