[1]
RIBES, E., ONTIVEROS, S., TORRES, C., CALDERÓN, G., CARVAJAL, J., MARTÍNEZ, C. and VARGAS, I. 2011. The equalization of the sample selection of second-order stimuli: Effects of two procedures. Mexican Journal of Behavior Analysis. 31, 1 (Jan. 2011), 1–22. DOI:https://doi.org/10.5514/rmac.v31.i1.23220.