1. ARMINGTON, J. C., TEPAS, D. I., KROPFL, W. J., & HENGST, W. H. Summated retinal potentials. In E. P. Horne and M. A. Whitcomb (Eds.),Vision research reports. Washington. D.C: National Academy of Sciences—National Research Council, 1960.
2. BOWDEN, L. The language of computers. American Scientist. 1970, 58, 43–53.
3. GREEN, B. F.Digital computers in research. New York: McGraw-Hill. 1963.
4. MICHAELS, P. Remote terminals replace university computer center. Electronic Systems Engineering. May/June 1970.
5. MOSMANN, C., & STEFFERUD, E. Campus computing management. Datamation. March 1971, 20–23.