J. Kaiser, “An Investigation into the Occurrence of Noises in Tensile Tests or a Study of Acoustic Phenomena in Tensile Tests”, Munich: Tech. Hosch. Munchen, 1950.
 Costin, Laurence S., "Time-dependent deformation and failure", Fracture mechanics of rock, 1987, Vol.167, p.215.
 Ashby, M. F., and C. G. Sammis., "The damage mechanics of brittle solids in compression", Pure and applied geophysics, 1990, Vol.133, no.3, pp.489-521.
 Holcomb, D. J., and L. S. Costin, "Detecting damage surfaces in brittle materials using acoustic emissions", 1986, pp.536-544.
 Sondergeld, Carl H., and Louis H. Estey, "Acoustic emission study of microfracturing during the cyclic loading of Westerly granite", Journal of Geophysical Research: Solid Earth , 1981, Vol.86, no.B4, pp.2915-2924.
 Nordlund, Erling, and Chunlin Li, "Acoustic emission and the Kaiser effect in rock materials", In The 31st US Symposium on Rock Mechanics (USRMS), OnePetro, 1990.
 Li, Bing Q., Bruno Gonçalves da Silva, and Herbert Einstein, "Laboratory hydraulic fracturing of granite: acoustic emission observations and interpretation", Engineering Fracture Mechanics, 2019, Vol.209, pp.200-220.
 Kiyoo, M. O. G. I., "Study of elastic shocks caused by the fracture of heterogeneous materials and its relations to earthquake phenomena", Bulletin of the Earthquake Research Institute, University of Tokyo: Tokyo, Japan, 1962, pp.125-173.
 Wass, Max, and Thomas C. Hanks, "The source parameters of the San Fernando earthquake inferred from teleseismic body waves", Bulletin of the Seismological Society of America, 1972, Vol.62, no.2, pp.591-602.
 Hanks, Thomas C., and Max Wyss, "The use of body-wave spectra in the determination of seismic-source parameters", Bulletin of the Seismological Society of America, 1972, Vol.62, no.2, pp.561-589.
 Lockner, David A., and James D. Byerlee, "How geometrical constraints contribute to the weakness of mature faults", Nature, 1993, Vol.363, no.6426, pp.250-252.
 Lei, X. L., K. Masuda, O. Nishizawa, L. Jouniaux, L. Liu, W. Ma, T. Satoh, and K. Kusunose, "Three typical stages of acoustic emission activity during the catastrophic fracture of heterogeneous faults in jointed rocks", Jou. Struct. Geol, 2004, Vol.26, pp.247-258.
 Lei, Xinglin, "Typical phases of pre-failure damage in granitic rocks under differential compression", Geological Society, London, Special Publications, 2006, Vol.261, no.1, pp.11-29.
 Lei, Xinglin, and Takashi Satoh, "Indicators of critical point behavior prior to rock failure inferred from pre-failure damage", Tectonophysics, 2007, Vol.431, no.1-4, pp.97-111.
 Papadrakakis, M., and M. Fragiadakis, "Relation of Frequency Bandwidth to Crack Length in Stressed Rocks", 2017.
 Ebrahimian, Z., M. Ahmadi, S. Sadri, B. Q. Li, and Omid Moradian, "Wavelet analysis of acoustic emissions associated with cracking in rocks", Engineering Fracture Mechanics, 2019, Vol.217, p.106516.
 Wong, L. N. Y., and H. H. Einstein, "Crack coalescence in molded gypsum and Carrara marble: part 1. Macroscopic observations and interpretation", Rock Mechanics and Rock Engineering, 2009, Vol.42, no.3, pp.475-511.
 Gupta, Samta, and A. Prabhakar Rao, "Fingerprint based gender classification using discrete wavelet transform & artificial neural network", International Journal of Computer Science and mobile computing, 2014, Vol.3, no.4, pp.1289-1296