S. P. McPherron, Z. Alemseged, C. Marean, J. G. Wynn, D. Reed, D. Geraads, R. Bobe, and H. B\'earat. Tool-marked bones from before the Oldowan change the paradigm. Proc. Natl. Acad. Sci. U. S. A., volume 108, issue 21, pages E116;authorreplyE117, May 2011.

S. P. McPherron, Z. Alemseged, C. W. Marean, J. G. Wynn, D. Reed, D. Geraads, R. Bobe, and H. A. Bearat. Evidence for stone-tool-assisted consumption of animal tissues before 3.39 million years ago at Dikika, Ethiopia. Nature, volume 466, issue 7308, pages 857-860, 2010.

W. H. Kimbel, R. C. Walter, D. C. Johanson, K. E. Reed, J. L. Aronson, Z. Assefa, C. W. Marean, G. G. Eck, R. Bobe, E. Hovers, and Others. Late {PlioceneHomoand} Oldowan Tools from the Hadar Formation (Kada Hadar Member), Ethiopia. J. Hum. Evol., Academic Press, volume 31, issue 6, pages 549-561, 1996.