CLAUDIO TODOROV, J., COUTO DE CARVALHO, L. and CARVALHO COUTO, K. 2013. PAUSES IN MULTIPLE EXTINCTION FIXED-INTERVAL REINFORCEMENT SCHEDULES WITH FIXED DURATIONS OF THE EXTINCTION COMPONENT: IMPLICATIONS FOR TIMING. Mexican Journal of Behavior Analysis. 39, 1 (Jun. 2013). DOI:https://doi.org/10.5514/rmac.v39.i1.63908.