The role of powered support in ensuring the proper longwall working cross-section area in rockburst-prone seamsZbigniew Lubosik, Sylwester Rajwa, Andrzej Walentek, Wojciech Masny and Aleksander WranaMATEC Web Conf., 305 (2020) 00081DOI: https://doi.org/10.1051/matecconf/202030500081