KaminL. J.The gradient of delay of secondary reward in avoidance learning. J. comp. physiol. Psychol., 1957, 50, 445–449. (a).
2.
KaminL. J.The gradient of delay of secondary reward in avoidance learning tested on avoidance trials only. J. comp. physiol. Psychol., 1957, 50, 450–456. (b).
3.
KaminL.CampbellD.JuddR.RyanT.WalkerJ.Two determinants of the emergence of anticipatory avoidance. J. comp. physiol. Psychol., 1959, 52, 202–205.
4.
MowrerO. H.LamoreauxR. R.Avoidance conditioning and signal duration—a study of secondary motivation and reward. Psychol. Monogr., 1942, 54, No. 5 (Whole No. 247).
