TY - CPAPER AU - A. Smilyanov AU - G. Trapov AU - I. Mariov AU - D. Hristanov TI - SOLUTION OF GOAL FUNCTIONS, COMPILED BY MEANS OF EXPONENCIAL FUNCTIONS, FOR OPTIMIZING THE AVERAGE ANNUAL EXPENSES FOR MAINTENANCE AND REPAIR OF MINE ROADS T2 - 4th International Scientific Conference - SGEM2004 PY - 2004 SP - 111 EP - 116 PB - SGEM Scientific GeoConference ER -