CABRER, F. Effects of the extemal clock duration on a fixed-interval schedule. Mexican Journal of Behavior Analysis, [S. l.], v. 1, n. 1, p. 153–172, 2011. DOI: 10.5514/rmac.v1.i1.26910. Disponível em: https://revistas.unam.mx/index.php/rmac/article/view/26910. Acesso em: 2 may. 2024.