1. Båth, M. (1984),Rockburst seismology. In Proc. of the 1st International Congress on Rockbursts and Seismicity in Mines, Johannesburg, 1982, SAIMM, Johannesburg, 7–15.
2. Brune, J. N. (1970),Tectonic stress and the spectra of seismic shear waves from earthquakes, J. Geophys. Res.75, 4997–5009.
3. Brune, J. N. (1971),Tectonic stress and the spectra of seismic shearwaves from earthquakes; correction. J. Geophys. Res.76, 5002.
4. Droste, Z. andTeissyre, R. (1974),Analysis of the P-wave signs and the method of determining mechanism and region of shock. Publ. Inst. Geoph. Pol. Acad. Sci.67, 77–87.
5. Droste, Z. andTeisseyre, R. (1976),Some cases of the shock mechanism types in the Upper Silesia coal region. Publ. Inst. Geoph. Pol. Acad. Sci.97, 141–155.