1. Aki K (1965) Maximum likelihood estimate of b in the formula log N = a−b M and its confidence limits. Bull Earth Res Inst Univ Tokyo 43:237–239
2. Aki K (1981) A probabilistic synthesis of precursory phenomena, in earthquake prediction. In: Simpson DW, Richards PG (eds) An international review, Maurice Ewing Set, vol 4. AGU, Washington, pp 566–574
3. Anderson RN, Hasegawa A, Umeno N, Takagi A (1980) Phase changes and frequency magnitude distribution in the upper plate of deep seismic beneath Tohoku, Japan. J Geophys Res 85:1389–1398
4. Bender B (1983) Maximum likelihood estimation of b-values for magnitude grouped data. Bull Seismol Soc Am 73:831–851
5. Bhattacharya SN, Karanth RV, Dattatrayam RS, Sohoni PS (2004) Earthquake sequence in and around Bhavnagar, Saurashtra, western India during August–December 2000 and associated tectonic features. Curr Sci 86:1165–1170