TY - CPAPER AU - Pavlina AU - Krecmerova TI - NATURAL METHODS OF WASTEWATER TREATMENT T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2012 12th International Multidisciplinary Scientific GeoConference PY - 2012 SP - 777 EP - 784 pp DO - 10.5593/sgem2012/s13.v3035 PB - Stef92 Technology ER -