1. Use of subaudible noises for the prediction of rock bursts—II;Obert,1942
2. Recent developments and applications of the microseismic method in deep mines;Blake,1970
3. Rock mechanics applied to the study of rockbursts;Cook;Jl S. Afr. Min. Metall.,1966
4. Acoustic observations in the mines of the Kizelovsk coal basin;Vinogradov;Bull. (Izv.) Acad. Sci. U.S.S.R., Geophy Ser,1957
5. Seismic precursors before rock failures in mines;Brady;Nature,1974