"Positional behavior of the white uakari (Cacajao calvus calvus)" in American Journal of Physical Anthropology

"The Evolution of Positional Behavior in the Saki-Uakaris (Pithecia, Chiropotes, and Cacajao)" in Adaptive Radiations of Neotropical Primates

"Standardized descriptions of primate locomotor and postural modes" in Primates

"Fine-grained differences within positional categories. A case study of Pithecia and Chiropotes" in Primate locomotion. Recent advances

"Reproductive parameters and life-history variables in captive golden-bellied mangabeys (Cercocebus agilis chrysogaster)" in American Journal of Primatology

"Leaping behavior of Pithecia pithecia and Chiropotes satanas in eastern Venezuela" in American Journal of Primatology