1. Alekseev A S, Egorkin A V and Pavlenkova N I, 1988. Shear waves in lithosphere studies on the territory of the U. S. S. R. Tectonophysics, 154: 227–239
2. Cai H C, Zhang S C, Hu Z A, et al., 1994. A study on 1720 Shacheng earthquake in Hebei province. Seismology and Geology, 16(4): 380–388 (in Chinese)
3. Cheng S P, Fang Z J, Yang Z, et al., 1991a. Characteristics of active normal fault zone along the northern margin of the Yanqing basin at Yaojiaying in Beijing. Research on Active Faults, 2: 131–139 (in Chinese)
4. Cheng S P, Yang Z and Yang G Z, 1991b. A study of faulting and tectonic geomorphology of Yuhangmiao-Xiyangfang segment, the northern boundary fault of the Yanqing basin, Yanqing, Beijing. Research on Active Faults, 2: 163–175 (in Chinese)
5. Fang Z J, Cheng S P, Wang J B, et al., (1989). Preliminary report on a paleoseismological section, Huangtuyao, Huailai, Hebei province. Seismology and Geology, 11(2): 66–68 (in Chinese)