D.Jefferson, R. Collins, C. Cooper, M. Dyer, M. Flowers, R. Korf, C. Taylor, and A. Wang. Evolution as a theme in artificial life: The genesys/tracker system. In C. G. Langton, C. Taylor, J. D. Farmer, and S. Rasmussen, editors, Artificial Life II: Proceedings of the Workshop on Artificial Life, pages 549–577. Addison-Wesley, 1991.

Angeline, P.J.   Saunders, G.M.   Pollack, J.B.  An evolutionary algorithm that constructs recurrent neural networks.  Neural Networks, IEEE Transactions on, pages 54-65.  Jan 1994

Rumelhart, D. E., McClelland, J. L., & the PDP research group. (1986). Parallel distributed processing: Explorations in the microstructure of cognition. Volume I. Cambridge, MA: MIT Press.