Szurgacz, D., Brodny, J.. "ROLE AND RELEVANCE OF AN ELECTRO CONTROL SYSTEM FOR THE OPERATION OF A POWERED ROOF SUPPORT." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining, 2017, pp. 781-788. https://doi.org/10.5593/sgem2017/13/s03.099