GreenspoonJ.BrownsteinA. J.Awareness in verbal conditioning. Journal of Experimental Research in Personality, 1967, 2, 295–308.
2.
PostmanL.SassenrathJ.The automatic action of verbal rewards and punishments. Journal of General Psychology, 1961, 65, 109–136.
3.
RosenfeldH. M.BaerD. M.Unnoticed verbal conditioning of an aware experimenter by a more aware subject: The double-agent effect. Psychological Review, 1969, 76, 425–432.
4.
SpielbergerC. D.DeNikeL. D.Descriptive behaviorism versus cognitive theory in verbal operant conditioning. Psychological Review, 1966, 73, 306–326.