1. Barliaeva, T. V., M. I. Paudovkin, and A. L. Morozova, 2001: Variations of the number of weak and strong earthquakes for 1997–1998 years and their possible precursors.Physics and Chemistry of the Earth.,26(C), 801–805.
2. China Seismological Bureau, 1977:Catalog of Strong Earthquakes in China. Earthquake Press, Beijing, 19pp. (in Chinese)
3. Chinese Academy of Meteorology Sciences, 1981:The 500 Years’ Distribution Figure of Drought and Flood in China. Atlas Press, Beijing, 332pp. (in Chinese)
4. Duma, G., and G. Vilardo, 1998: Seismicity cycles in the Mt. Vesuvius area and their relation to solar flux and the variations of the earth’s magnetic field.Physics and Chemistry of the Earth,23, 927–931.
5. Feng Song, and Tang Maocang, 1997: Solar activity and change of temperature in the past 2500 years.Quaternary Sciences,17(1), 28–36. (in Chinese)