TY  - BOOK
AU  - Szwilski,A.B.
AU  - Richards,M.J.
ED  - International Symposium on Underground Mining Methods andTechnology
TI  - Underground mining methods and technology: proceedings of the International Symposium on Underground Mining Methods and Technology, Nottingham, England, September 8-13, 1986 
SN  - 0444428453 
PY  - 1987///
CY  - Amsterdam
PB  - Elsevier
KW  - Mining engineering
ER  -