PITTS, R. C.; HUGHES, C. E.; WILLIAMS, D. C. Transitions from Rich-to-Lean Schedules Increase Attack in a Laboratory Model of Social Aggression in Pigeons: II. Fixed-interval Schedules. Mexican Journal of Behavior Analysis, [S. l.], v. 45, n. 2, 2019. DOI: 10.5514/rmac.v45.i2.75582. Disponível em: https://journals.unam.mx/index.php/rmac/article/view/75582. Acesso em: 3 jul. 2024.