1. Russell, S., Norvig, P.: Artificial intelligence: A modern approach, vol. 25. Prentice-Hall, Egnlewood Cliffs (1995)
2. Goldberg, D.E.: Genetic Algorithms in Search, Optimization and Machine Learning. Ad-dison-Wesley Longman Publishing Co., Inc., Boston (1989)
3. Dorigo, M., Maniezzo, V., Colorni, A.: Ant system: optimization by a colony of cooperating agents. IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics 26(1), 29–41 (1996)
4. Kennedy, J., Eberhart, R.C.: Particle swarm optimization. In: Proc. IEEE Intl. Conf. on Neural Networks. IEEE Service Center, Piscataway, pp. 1942–1948 (1995)
5. Walker, A., Hallam, J., Willshaw, D.: Bee-havior in a mobile robot: The construction of a self-organized cognitive map and its use in robot navigation within a complex, natural environment. In: IEEE International Conference on Neural Networks, pp. 1451–1456 (1993)