TY  - BOOK
AU  - Lupiya, Mulenga
TI  - Optimisation of fragmentation in vertical crater retreat (VCR) method of mining at the South orebody shaft (SOB)
AV  - THESIS 
PY  - 2005///
CY  - 
PB  - Copperbelt University, School of Technology, Mining Department
KW  - MINING
KW  - MINING ENGINEERING
ER  -