1. BARTLEY, S. H. 1951. The psychophysiology of vision. In S. S. Stevens (Ed.). Handbook of experimental psychology. New York: Wiley.
2. CHAPANIS, A., GARNER, W., & MORGAN, C. 1949. Applied experimental psychology. New York: Wiley.
3. ELFNER, L., & PAGE, H. A. 1963. Autokinetic enhancement as a function of flicker. Percept, motor Skilk, 299–301.
4. ELFNER, L. & PAGE, H. A. 1964. Autokinetic movement as a function of the light-dark ratio (Ldr), Psychon. Sci., 1, 59–60.
5. LUCHINS, A. 1954. The autokinetic effect and gradations of illumination of the visual field. J. gen. Psychol., 50, 29–37.