S. F. Ferrari, P. G. Guedes, W. M. Figueiredo-Ready, and A. A. Barnett, “Reconsidering the taxonomy of the Black-Faced Uacaris, Cacajao melanocephalus group (Mammalia: Pitheciidae), from the northern Amazon Basin”, Zootaxa, vol. 3866, no. 3, pp. 353–370, Sep. 2014.