The capability of detailed study of coal- and orebearing structures using electrical resistivity tomography (ERT) by means of “well boresurface” observation systemNikolai Shkabarnia, Grigorii Shkabarnia, Petr Gorelov and Svetlana KorneevaE3S Web Conf., 56 (2018) 02026DOI: https://doi.org/10.1051/e3sconf/20185602026