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地质学报 1939
ONTHEPRESUMABLEEXISTENCEOFAWORLD-WIDESUB-ARCTICSHEETOFHUMANCULTUREATTHEDAWNOFTHENEOLITHICAbstract: 1.Thefacts.OnaparticulardayofJuly1931,duringtheHaardt-Citroentrans-asiaticExpedition,Ihappenedtocollect,nearChikuchinze,intheTurfanarea(ChineseTurkestan),twoperfectlysimilar,rostrated
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