1. Evaluation of roof conditions from bolting machine parameters;Luisigna;U.S. Bur. Mines Rep. Conract No. J0275021,1978
2. Automated blast hole logging and design;Scheck;U.S. Bur Mines Final Rep., Grant No. G1115006,1982
3. Performance monitoring of production blasthole drills—a means of increasing blasting efficiency;Hagan,1983
4. An investigation to evaluate the relationship between Rock Quality Index (RQI) and powder factor for surface mining;Lebel,1984
5. Studies of rock fragmentation by drilling and blasting in open cut mines;Mol,1987