Alarcón Acuña, Daniel, Gonzalo Miguez Cavieres, and Ronald Betancourt Mainhard. 2009. “Increments in Operant Behavior Due to a CS Associated to Ethanol”. Revista De Psicología 18 (2):Pág. 65-79. https://doi.org/10.5354/0719-0581.2009.17121.