TY - CPAPER AU - M. Pranchova AU - HR. Popivanov AU - L. Vitaonv TI - COAL DUST SUPPRESSION SYSTEMS T2 - 2nd International Scientific Conference - SGEM2002 PY - 2002 SP - 131 EP - 138 SN - 954-918181-2 PB - SGEM Scientific GeoConference ER -