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Kimbel WH, Johanson DC, Rak Y.Kimbel WH, et al. Among authors: johanson dc.Nature. 1994 Mar 31;368(6470):449-51. doi: 10.1038/368449a0.Nature. 1994.PMID: 8133889
Rak Y, Kimbel WH, Johanson DC.Rak Y, et al. Among authors: johanson dc.Am J Phys Anthropol. 1996 Sep;101(1):93-9. doi: 10.1002/(SICI)1096-8644(199609)101:1<93::AID-AJPA6>3.0.CO;2-E.Am J Phys Anthropol. 1996.PMID: 8876815