1. Birk, Andreas (1995). Stimulus Response Lernen. Dissertation. University of Saarbruecken. Germany.
2. Butz, M., Goldberg, D., & Stolzmann, W. (1999). New Challenges for an Anticipatory Classifier System: Some Hard Problems and Possible Solutions. IlliGAL Report No. 99019. Illinois Genetic Algorithms Laboratory, University of Illinois at Urbana-Champaign
3. Croake, J. W. (1971). Unrewarded exploration and maze learning. Psychological Reports, 1971, 29, 1335–1340.
4. Hoffmann, Joachim (1993). Vorhersage und Erkenntnis. Göttingen: Hogrefe.
5. Michel, Olivier (1998). Webots-User Guide. Cyberbotics (
http://www.cyberbotics.com
)