1. Wu, X. Z., Study on the Upper Cave Man of Choukoutien, Vertebrata PalAsiatica, 1961(3): 181–203.
2. Pei, W. C., The Upper Cave fauna of Choukoutien, Palaeotologia Sinica, New Ser. C., 1940(10): 1–84.
3. Pei, W. C., A preliminary report on the Late-Palaeolithic cave of Choukoutien, Bulletin of the Geological Society of China, 1934, 13(3): 327–358.
4. Chen, T. M., Yuan, S. X., Gao, S. J., The study on the Uranium-series dating of fossil bones and an absolute age sequence for the main Paleolithic sites of North China, Acta Anthropologica Sinica, 1984, 3(3): 259–269.
5. Chen, T. M., Hedges, R. E. M., Yuan, Z. X., The second batch of accelerator radiocarbon dates for Upper Cave Site of Zhoukoudian, Acta Anthropologica Sinica, 1992, 11(2): 112–116.