García García, Andrés, Mayte Gutiérrez Domínguez, Jesús Gómez Bujedo, and Vicente Pérez Fernández. “Competition Among Arbitrary and Non-Arbitrary Relationships in the Paradigm Equivalence –equivalence”. Apuntes de Psicología 20, no. 2 (June 9, 2002): 205–224. Accessed October 26, 2026. https://apuntesdepsicologia.es/index.php/revista/article/view/1370.