Boom-less recovery means darwinian struggle for some
Jesse Morton
págs. 20-24
Forget powder factor for blast design
Anthony Konya, Calvin J. Konya
págs. 26-31
Kentucky pilot plant produces rare earths, controversy
págs. 32-35
Assessing roof-bolt performance in deep cover
págs. 36-38
Improved loading techniques through situational awareness
págs. 40-41
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