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72by Liu, Qingsong, Zhu, Rixiang, Pan, Yongxin, Guo, BinGet access
Published in Science in China Series D: Earth Sciences (2000)
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74by Hathaway, J.Holly, Eighmy, Jeffrey L., Kane, Allen E.Get access
Published in Journal of Archaeological Science (1983)
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79by Egorova, L.V, Vovk, V.Ya, Troshichev, O.AGet access
Published in Journal of Atmospheric and Solar-Terrestrial Physics (2000)
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