1. The discovery of the principles of reinforcement, extinction, generalization, and differentiation of conditional reflexes in Pavlov’s laboratories;Windholz;Pavlov J. Biol. Sci.,1989
2. Neural networks and physical systems with emergent collective computational abilities;Hopfield;Nat. Acad. Sci. USA,1982
3. Associative memory with nonmonotone dynamics;Morita;Neural Netw.,1993
4. Memories and memory: A physicist’s approach to the brain;Copper;Int. J. Mod. Phys. A,2000
5. Fundamentals of the new artificial intelligence;Munakata,2008