B. Villmoare, W. H. Kimbel, C. Seyoum, C. J. Campisano, E. N. DiMaggio, J. Rowan, D. R. Braun, J. R. Arrowsmith, and K. E. Reed. Early Homo at 2.8 Ma from {Ledi-Geraru}, Afar, Ethiopia. Science, American Association for the Advancement of Science, volume 347, issue 6228, pages 1352-1355, March 2015.

B. Villmoare, W. H. Kimbel, C. Seyoum, C. J. Campisano, E. N. DiMaggio, J. Rowan, D. R. Braun, J. R. Arrowsmith, and K. E. Reed. Early Homo at 2.8 Ma from {Ledi-Geraru}, Afar, Ethiopia. Science, American Association for the Advancement of Science, volume 347, issue 6228, pages 1352-1355, March 2015.