Dobyns, Jay, Johnson-Shelton, Nils, Rometsch, Martin Falscher Engel: Mein Höllentrip als Undercover-Agent bei den Hells Angels.

Montaner, Miquel, López, Beatriz, de la Rosa, Josep Lluís, A Taxonomy of Recommender Agents on the Internet, in: Artificial Intelligence Review 19 4 (2003), S. 285--330.

Yu, Bin, Singh, Munindar P.: Searching social networks. In: Proceedings of the second international joint conference on Autonomous agents and multiagent systems. New York, NY, USA : ACM, 2003. - ISBN 1-58113-683-8, S. 65--72

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

Steels, L., The Origins of Ontologies and Communication Conventions in Multi-Agent Systems, in: Autonomous Agents and Multi-Agent Systems 1 2 (1998), S. 169-194.