Wynn, Jonathan (2000). "Paleosols, stable carbon isotopes, and paleoenvironmental interpretation of Kanapoi, Northern Kenya". Journal of Human Evolution. 39 (4): 411–432. doi:10.1006/jhev.2000.0431. PMID11006049.
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pubmed.ncbi.nlm.nih.gov
Wynn, Jonathan (2000). "Paleosols, stable carbon isotopes, and paleoenvironmental interpretation of Kanapoi, Northern Kenya". Journal of Human Evolution. 39 (4): 411–432. doi:10.1006/jhev.2000.0431. PMID11006049.