Herrera Lira, Alejandro, and Andrés M. Pérez-Acosta. “11th Congress of the Spanish Society of Comparative Psychology”. Apuntes de Psicología 17, no. 3 (November 26, 1999): 365–370. Accessed October 26, 2026. https://apuntesdepsicologia.es/index.php/revista/article/view/1294.