R. Kristiansen, und H. Trætteberg. Task Models and Diagrams for User Interface Design, Volume 4849 von Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2007)
F. Radeke, und P. Forbrig. Proceedings of the 6th international conference on Task models and diagrams for user interface design, Seite 184--197. Berlin/Heidelberg, Springer-Verlag, (2007)