Hiramatsu, C., Melin, A. D., Aureli, F., Schaffner, C. M., Vorobyev, M., Matsumoto, Y., & Kawamura, S. (2008). Importance of Achromatic Contrast in Short-Range Fruit Foraging of Primates. Public Library of Science.

Hiramatsu, Chihiro, Amanda D. Melin, Filippo Aureli, Colleen M. Schaffner, Misha Vorobyev, Yoshifumi Matsumoto, ja Shoji Kawamura. Importance of Achromatic Contrast in Short-Range Fruit Foraging of Primates. Public Library of Science, 2008.

Hiramatsu, Chihiro, et al. Importance of Achromatic Contrast in Short-Range Fruit Foraging of Primates. Public Library of Science, 2008.