1. Chen Yuwei, Zhong Fudao et al. (1984) Pb isotopic dating of some Precambrian rocks from North China an Ensuing discussion on Precambrian geochronological time-scale of China.Chinese Journal of Geochemistry, 3(1), 24–36.
2. Lugmair, G. W. et al.(1976) History and genesis of lunartroctolite 76535 or: How old is it?Proc. Lunar Sci. Conf. 7th, 2009–2003.