1. Yao Tandong, Jiao Keqin, Yang Zhihong et al., Climate change recorded in the Guliya ice core since the Little Ice Age, Science in China, Ser. B, 1995, 25(10): 1108.
2. Yao Tandong, Qin Dane, Tian Lide et al., Variations in temperature and precipitation in the past 2000a on the Xizang (Tibet) Plateau—Guliya ice core record, Science in China, Ser. D, 1996, 26(4): 348.
3. Zheng Benxing, Shi Yafeng, Glacier fluctuation in Mt. Qomolangma region, in Glacier and Glacial Geomorphology, From the Scientific Report of Mt. Qomolangma Expedition (1966–1968) (in Chinese), Beijing: Science Press, 1975: 92.
4. Xie Zichu, Ablation characteristics of the Rongbuk Glacier, in Glacier and Glacial Geomorphology, From the Scientific Report of Mt. Qomolangma Expedition (1966–1968) (in Chinese), Beijing: Science Press, 1975: 65.
5. Buck, C. F., Mayewski, P. A., Spencer, M. J. et al., Determination of major ions in snow and ice cores by ion chromatography, J. Chromatogr., 1992, 594: 225.