1. American Association of Workers for the Blind, Association for Education of the Visually Handicapped, & the National Braille Association. English braille American edition, 1959. Louisville,Ken: American Printing House for the Blind, 1972.
2. Anstis, S. M. A chart demonstrating variations in acuity with retinal position. Vision Research, 1974, 14, 589–592.
3. Bouma, H., & DeVoogd, A. H. On the control of eye saccades in reading. Vision Research, 1974, 14, 273–284.
4. Brooks, L. Visual pattern in fluent work identification. In A. S. Reber & D. L. Scarborough (Eds.), Toward a psychology of reading. Hillsdale,N.J: Erlbaum, 1977.
5. Brown, R. Psychology and reading: Commentary on Chapters 5 to 10. In H. Levin & J. P. Williams (Eds.), Basic studies in reading. New York: Basic Books, 1970.