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Wood, B. (1999). "Homo rudolfensis Alexeev, 1986: Fact or phantom?". Journal of Human Evolution. 36 (1): 115–118. doi:10.1006/jhev.1998.0246. PMID9924136.
Bromage, T. G.; McMahon, J. M.; Thackeray, J. F.; Kullmer, O.; Hogg, R.; Rosenberger, A. L.; Schrenk, F.; Enlow, D. H. (2008). "Craniofacial architectural constraints and their importance for reconstructing the early Homo skull KNM-ER 1470". The Journal of Clinical Pediatric Dentistry. 33 (1): 43–54. doi:10.17796/jcpd.33.1.8168115j12103nut. PMID19093651.
Leakey, M.; Spoor, F.; Dean, M. Christopher; Feibel, Craig S.; Antón, Susan C.; Kiarie, Christopher; Leakey, Louise N. (2012). "New fossils from Koobi Fora in northern Kenya confirm taxonomic diversity in early Homo". Nature. 488 (7410): 201–204. Bibcode:2012Natur.488..201L. doi:10.1038/nature11322. PMID22874966. S2CID4431262.
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