1. Balbo, S., Ozkan, N., Paris, C.: Choosing the Right Task-modeling Notation: A Taxonomy. In: Diaper, D., Stanton, N.A. (eds.) The Handbook of Task Analysis for Human-Computer Interaction, pp. 445–466 (2004)
2. Limbourg, Q., Vanderdonckt, J.: Comparing Task Models for User Interface Design. In: Diaper, D. (ed.) The Handbook of Task Analysis for Human-Computer Interaction, pp. 135–154 (2004)
3. Lecture Notes in Computer Science;D. Sinning,2007
4. Paterno, F.: ConcurTaskTrees: An Engineered Notation for Task Models. In: Diaper, D., Stanton, N.A. (eds.) The Handbook of Task Analysis for Human-Computer Interaction, pp. 483–501 (2004)
5. Lucquiaud, V.: Proposition d’un noyau et d’une structure pour les modèles de tâches orientés utilisateurs. In: 17th French-speacking conference on Human-computer interaction, Toulouse, pp. 83–90 (2005)