1. Keeping costs down;Scales;Can. Min. J.,1988
2. An automated rock bolter for hard rock mines;Haines;Can. Min. J.,1987
3. Development of the automatic Go-60 drill;Kelly;CIM Bull.,1987
4. Boosters Improve Productivity;Inco Inc.;Inco Triangle,1985
5. Modified vertical crater retreat mining at Lockerby Mine;Hayward,1987