Bezerra, B., C. Casar, L. Jerusalinsky, A. Barnett, M. Bastos, A. Souto, and G. Jones. “Pitheciid Vocal Communication: What Can We Say about What They Are Saying?”. Ethnobiology and Conservation, vol. 6, Sept. 2017, doi:10.15451/ec2017-09-6.15-1-18 .