Hernandez-Pozo, R., Harzem, P., Rossi, M. and Fernández Pardo, G. (2011) “Assessment of the ‘time-urgency’ behavioral style: performance under DRL schedules of reinforcement”, Mexican Journal of Behavior Analysis, 16(1), pp. 113–129. doi: 10.5514/rmac.v16.i1.23363.