Latimer B, Lovejoy CO (March 1989). "The calcaneus of Australopithecus afarensis and its implications for the evolution of bipedality". American Journal of Physical Anthropology. 78 (3): 369–386. doi:10.1002/ajpa.1330780306. PMID2929741.
Wang W, Crompton RH, Carey TS, Günther MM, Li Y, Savage R, Sellers WI (December 2004). "Comparison of inverse-dynamics musculo-skeletal models of AL 288-1 Australopithecus afarensis and KNM-WT 15000 Homo ergaster to modern humans, with implications for the evolution of bipedalism". Journal of Human Evolution. 47 (6): 453–478. doi:10.1016/j.jhevol.2004.08.007. PMID15566947.
Wittman AB, Wall LL (November 2007). "The evolutionary origins of obstructed labor: bipedalism, encephalization, and the human obstetric dilemma". Obstetrical & Gynecological Survey. 62 (11): 739–748. doi:10.1097/01.ogx.0000286584.04310.5c. PMID17925047.
Ruff C (October 2003). "Ontogenetic adaptation to bipedalism: age changes in femoral to humeral length and strength proportions in humans, with a comparison to baboons". Journal of Human Evolution. 45 (4): 317–349. doi:10.1016/j.jhevol.2003.08.006. PMID14585245.
Latimer B, Lovejoy CO (March 1989). "The calcaneus of Australopithecus afarensis and its implications for the evolution of bipedality". American Journal of Physical Anthropology. 78 (3): 369–386. doi:10.1002/ajpa.1330780306. PMID2929741.
Wang W, Crompton RH, Carey TS, Günther MM, Li Y, Savage R, Sellers WI (December 2004). "Comparison of inverse-dynamics musculo-skeletal models of AL 288-1 Australopithecus afarensis and KNM-WT 15000 Homo ergaster to modern humans, with implications for the evolution of bipedalism". Journal of Human Evolution. 47 (6): 453–478. doi:10.1016/j.jhevol.2004.08.007. PMID15566947.
Wittman AB, Wall LL (November 2007). "The evolutionary origins of obstructed labor: bipedalism, encephalization, and the human obstetric dilemma". Obstetrical & Gynecological Survey. 62 (11): 739–748. doi:10.1097/01.ogx.0000286584.04310.5c. PMID17925047.
Ruff C (October 2003). "Ontogenetic adaptation to bipedalism: age changes in femoral to humeral length and strength proportions in humans, with a comparison to baboons". Journal of Human Evolution. 45 (4): 317–349. doi:10.1016/j.jhevol.2003.08.006. PMID14585245.