Tawane, G., D. García-Martínez, J. Eyre, M. Bastir, L. Berger, P. Schmid, S. Nalla, and S. A. Williams. “A Hominin First Rib Discovered at the Sterkfontein Caves, South Africa”. South African Journal of Science, vol. 112, no. 5/6, May 2016, p. 7, doi:10.17159/sajs.2016/20150278.