McCulloch, Warren; Walter Pitts (1943). «A Logical Calculus of Ideas Immanent in Nervous Activity». Bulletin of Mathematical Biophysics. 5 (4): 115–133. doi:10.1007/BF02478259.
Farley, B.; W.A. Clark (1954). «Simulation of Self-Organizing Systems by Digital Computer». IRE Transactions on Information Theory. 4 (4): 76–84. doi:10.1109/TIT.1954.1057468.
Rochester, N.; J.H. Holland, L.H. Habit and W.L. Duda (1956). «Tests on a cell assembly theory of the action of the brain, using a large digital computer». IRE Transactions on Information Theory. 2 (3): 80–93. doi:10.1109/TIT.1956.1056810.