Madsen, E. A., Persson, T., Sayehli, S., Lenninger, S., & Sonesson, G. (2013). Chimpanzees show a developmental increase in susceptibility to contagious yawning: A test of the effect of ontogeny and emotional closeness on yawn contagion. Public Library of Science (PLoS).
Cita Chicago Style (17a ed.)Madsen, Elainie Alenkær, Tomas Persson, Susan Sayehli, Sara Lenninger, y Göran Sonesson. Chimpanzees Show a Developmental Increase in Susceptibility to Contagious Yawning: A Test of the Effect of Ontogeny and Emotional Closeness on Yawn Contagion. Public Library of Science (PLoS), 2013.
Cita MLA (8a ed.)Madsen, Elainie Alenkær, et al. Chimpanzees Show a Developmental Increase in Susceptibility to Contagious Yawning: A Test of the Effect of Ontogeny and Emotional Closeness on Yawn Contagion. Public Library of Science (PLoS), 2013.