1. Atkinson, R. C. and Crothers, E. J. A comparison of paired-associate learning models having different acquisition and retention axioms.Journal of Mathematical Psychology, 1964,1, 285–315.
2. Barnes, J. M. and Underwood, B. J. “Fate” of first-list associations in transfer theory.Journal of Experimental Psychology, 1959,58, 97–105.
3. Bower, G. H. and Theios, J. A learning model for discrete performance levels. In Atkonson, R. C. (Ed.),Studies in mathematical psychology, Stanford: Stanford University Press, 1964, 1–31.
4. Bower, G. H. and Trabasso, T. R. Concept identification. In Atkonson, R. C. (Ed.),Studies in mathematical psychology. Stanford: Stanford University Press, 1964. 32–94.
5. Chandler, J. P. Subroutine Stepit. Program QCPE 66. Quantum Chemistry Program Exchange, Indiana University, Bloomington, Indiana, 1965.