TY  - CPAPER
AU  - Konstantin Georgiev
AU  - Rada Gavrilova
AU  - Ognian Alexandrov
TI  - DEFINING SLOPE ANGELS OF THE BENCHES AND THE OPENCAST FLANKS OF "PROPAST-DOBROVOLETC" MINE
T2  - 1st International Scientific Conference - SGEM2001
PY  - 2001
SP  - 125
EP  - 130
PB  - SGEM Scientific GeoConference
ER  -