Martínez-Navarro, B. (2011). Presence of the Asian origin Bovini, Hemibos sp. Aff. Hemibos gracilis and Bison sp., at the early Pleistocene site of Venta Micena (Orce, Spain). Quaternary International. 243 (1): 54—60. Bibcode:2011QuInt.243...54M. doi:10.1016/j.quaint.2011.05.016.
Martínez-Navarro, B. (2011). Presence of the Asian origin Bovini, Hemibos sp. Aff. Hemibos gracilis and Bison sp., at the early Pleistocene site of Venta Micena (Orce, Spain). Quaternary International. 243 (1): 54—60. Bibcode:2011QuInt.243...54M. doi:10.1016/j.quaint.2011.05.016.