African Homo erectus: old radiometric ages and young Oldowan assemblages in the Middle Awash Valley, Ethiopia
1987 ◽
Vol 16
(7-8)
◽
pp. 809-826
◽
2010 ◽
Vol 9
(6-7)
◽
pp. 331-339
◽
2013 ◽
Vol 65
(3)
◽
pp. 223-252
◽