1. China Seismological Bureau, 1996. An Introduction to Seismic Intensity Zoning Map (1990). Beijing: Seismological Press, 117–123 (in Chinese)
2. Huang W Q, Li W X, 1997. Physical background on estimating b value. Acta Seismologica Sinica, 10(1): 107–114
3. Huang W Q, Shi Z L and Cao X F, 1989. Factors influencing the estimation of b value and the selection of b value in hazard analysis. Acta Seismologica Sinica, 3(4):421–436
4. Shi Z L, Huan W L, Cao X L, et al., 1974. Some characteristics of seismic activity in China. Acta Geophysica Sinica, 17(1):1–12 (in Chinese)