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Smith, B.N., Hoops, G.K., Land, L.S. et al. 13C/12C ratios of aragonite from fruit ofCeltis laevigata willd. Naturwissenschaften 58, 365–366 (1971). https://doi.org/10.1007/BF00602802
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DOI: https://doi.org/10.1007/BF00602802