1. Butt, S. D., Analysis of Mining Induced High Frequency Microseismicity. Unpubl. Ph.D. thesis, Dept. of Mining Eng., Queen's Univ., Kingston, Canada, 1996
2. Butt, S. D., Apel, D. B. and Calder, P. N., Analysis of high frequency microseismicity recorded at an underground hardrock mine. Pure Appl. Geophys., 150, (3–4), 1997
3. Alheid. H. J. and Rummel, F., Acoustic emission during frictional sliding along shear planes in rock. In Proc. 1st Conf. on AE/MA in Geologic Structures and Materials, Penn. State Univ., Pennsylvania, 1975, pp. 13–32
4. Acoustic emission of rocks under triaxial compression with various stress paths;Chen;Int. J. Rock Mech. Min. Sci. Geomech. Abstr.,1979
5. The frequency–magnitude relation of microfracturing in rock and its relation to earthquakes;Scholz;Bull. Seis. Soc. Am.,1968