Quality Numerical Indicators of Raw Materials of Sanguisorba Officinalis L. Growing on Overburden Dumps of Kuzbass Coal Surface MinesNatalya Egorova, Irina Egorova, Elena Maltseva and Andrey SukhikhE3S Web Conf., 105 (2019) 02004DOI: https://doi.org/10.1051/e3sconf/201910502004