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. 1968 Feb;59(2):639–646. doi: 10.1073/pnas.59.2.639

Amino acids in Precambrian sediments: an assay.

J W Schopf, K A Kvenvolden, E S Barghoorn
PMCID: PMC224720  PMID: 5238992

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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