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Todd, N. E. 2001. «African Elephas recki: Time, space and taxonomy». In: Cavarretta, G., P. Gioia, M. Mussi, and M. R. Palombo. The World of Elephants, Proceedings of the 1st International Congress. Consiglio Nazionale delle Ricerche. Rome, Italy. OnlineArkivert 16. desember 2008 hos Wayback Machine.
M. Meyer m.fl. (2017). «Palaeogenomes of Eurasian straight-tusked elephants challenge the current view of elephant evolution». eLife. 6: e25413. ISSN2050-084X. doi:10.7554/eLife.25413.