Vick, S., Waller, B. M., Parr, L. A., Smith Pasqualini, M. C., & Bard, K. A. (2007). A Cross-species Comparison of Facial Morphology and Movement in Humans and Chimpanzees Using the Facial Action Coding System (FACS).

Vick, Sarah-Jane, Bridget M. Waller, Lisa A. Parr, Marcia C. Smith Pasqualini, i Kim A. Bard. A Cross-species Comparison of Facial Morphology and Movement in Humans and Chimpanzees Using the Facial Action Coding System (FACS). 2007.

Vick, Sarah-Jane, et al. A Cross-species Comparison of Facial Morphology and Movement in Humans and Chimpanzees Using the Facial Action Coding System (FACS). 2007.