1. R. Arkin. Behavior-based Robotics. MIT Press, 1998.
2. N. Badler, C. Philips, B. Webber. Simulating humans: computer graphics, animation, and control. Oxford University Press, 1993.
3. N. Badler ET AL. Real Time Virtual Humans. International Conference on Digital Media Futures, Bradford (UK), April 1999.
4. G. Berry The Esterel v5 language primer. Technical Report, Centre de Mathématiques Appliquées (INRIA et École des Mines de Paris),1999.
5. B. Blumber, P. Todd, P. Maes. No bad dogs: ethological lessons for learning in Hamsterdam. From Animals to Animats 4, Cape Cod (USA), September 1996.