Dobyns, J., Johnson-Shelton, N.,, Rometsch, M. (2011). Falscher Engel: Mein Höllentrip als Undercover-Agent bei den Hells Angels. Ullstein Taschenbuch.

Montaner, M., López, B. & de la Rosa, J. L. (2003). A Taxonomy of Recommender Agents on the Internet. Artificial Intelligence Review, 19, 285--330. doi: 10.1023/A:1022850703159

Yu, B. & Singh, M. P. (2003). Searching social networks. Proceedings of the second international joint conference on Autonomous agents and multiagent systems (p./pp. 65--72), New York, NY, USA: ACM. ISBN: 1-58113-683-8

Parent, S., Mobasher, B. & Lytinen, S. (2001). An Adaptive Agent for Web Exploration Based of Concept Hierarchies. Proceedings of the 9th International
Conference on Human Computer Interaction, New Orleans, LA.

Steels, L. (1998). The Origins of Ontologies and Communication Conventions in Multi-Agent Systems. Autonomous Agents and Multi-Agent Systems, 1, 169-194.