1. Focal depths of Witwatersrand tremors;Gane;Bull. Seismol. Soc. Am.,1952
2. Stress waves resulting from rock failure;Isaacson,1961
3. First motions from seismic sources;Knopoff;Bull. Seismol. Soc. Am.,1960
4. Induced seismicity resulting from roof caving and pillar failure in longwall mining;Kusznir,1982
5. Mining induced seismicity in the North Staffordshire Coalfield, England;Kusznir;Int. J. Rock. Mech. Min. Sci. Geomech. Abstr.,1980