1. Developing reinforcement requirements for rockburst conditions at Hecla's Lucky Friday mine;Blake,1990
2. Recognition of the zones of seismic hazard in Polish coal mines by using a seismic method;Dubinski,1989
3. Recognition of the zones of seismic hazard in Polish Coal mines by using a seismic method
4. Mining applications of seismic tomography;Friedel,1992
5. Application of seismic tomography for assessing yield pillar stress conditions;Friedel,1993