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