Velazquez Martínez, D. N., Bermúdez Rattoni, F., & Prado Alcalá, R. A. (2011). Effects of halo pendol oit Me perforrmance of a response conditíoned under a fixed-interval schedule. Mexican Journal of Behavior Analysis, 7(2), 159–164. https://doi.org/10.5514/rmac.v7.i2.25741