Fryc, Jan, Schmidtovб, Eva, Kucerovб, Radmila. "BIO - FLOTATION." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING (2013): 547 - 552 pp. https://doi.org/10.5593/sgem2013/ba1.v2/s04.002