TY - CPAPER AU - Irena Stambolieva TI - ENVIRONMENTAL MANAGEMENT AND MONITORING AT NAVAN CHELOPECH AD AND BIMAK AD, COMPANIES INVOLVED IN MINING AND PROCESSING OF GOLD-COPPER ORES T2 - 1st International Scientific Conference - SGEM2001 PY - 2001 SP - 353 EP - 370 PB - SGEM Scientific GeoConference ER -