Ecotoxicants Content of Sanguisorba officinalis L., Growing on Mining Disturbed Lands of Kemerovo RegionNatalya Egorova, Irina Egorova, Elena Maltseva and Andrei SukhikhE3S Web Conf., 41 (2018) 02023DOI: https://doi.org/10.1051/e3sconf/20184102023