1. Aitken MJ (1985) Thermoluminescence dating. Acad Press, London
2. Chen SP (1993) A discussion on the genesis of karst collapse columns in Fengfeng area, Hebei Province. Carsol Sin 12:233–244
3. Chu ZZ (1998) The characteristics of the accompanying faults of collapse column and the prediction of collapse column. Coal Geol Explor 26:6–28
4. Grün R (1989) Electron spin resonance (ESR) dating. Quatern Int 1:65–109
5. He ZH (2012) Study on development characteristic of karst collapse column and water Inrush mechanism in Shuangliu Mine. Ph.D.’s Dissertation, Chin Univ Coal Min Tech