1. Hopfield, J.J.: Neurons with graded response have collective computational properties like those of two-state neurons. Proc. Natl. Acad. Sci. (USA) 81, 3088–3092 (1984)
2. Schieve, W.C., Bulsara, A.R., Davis, G.M.: Single effective neuron. Phys. Rev. A 43, 2613–2623 (1991)
3. Zeng, Z., Scheve, W.C., Das, P.K.: Two-neuron dynamics and adiabatic elimination. Physica D 67, 224–236 (1993)
4. Kwek, K.H., Li, J.: Periodic solution and dynamics in two-neuron network system. Neural Parallel Sci. Comput. 3, 189–203 (1995)
5. Babcock, K.L., Westervelt, R.M.: Dynamics of simple electronic neural networks. Physica D 28, 305–306 (1987)