1. The T.R.W. Canoga Park System Culler, G.J., and B.D. Fried: An On-Line Computing Center for Scientific Problems, Proc. 1963 Pacific Computer Conference of the IEEE, March 1963, p. 221.
2. The S.T.L. Space Park System Culler, G.J., and B.D. Fried: The T.R.W. Two station On-Line Scientific Computer and General Description, Computer Augmentation of Human Reasoning, Spartan Press, 1965.
3. The Columbia University System Klerer, M, and J. May: Two-Dimensional Programming, Conference Proceedings of the Fall Joint Computer Conference 1965, Spartan Books, pp. 63-73, 1965.
4. The Amtran System Albert, M.R., P.C. Clem, L.A. Flenker, J. Reinfelds, R.N. Seitz, and L.H. Wood: The Amtran Sampler System INstruction Manual, NASA Technical Memorandum, NASA TM X-53342, July 1966.
5. The University of California, Santa Barbara System Culler, G.J.: The User's Manual for an On-Line System, On-Line Computing, McGraw Hill, 1967.