A. Ferraro, X. Serra, und C. Bauer. Volume 12933 von Lecture Notes in Computer Science, Kapitel 33, Seite 562-584. Springer International Publishing, Cham, Germany, (2021)
C. Wartena, R. Brussee, und M. Wibbels. Proceedings of the International Conference on Intelligent Sytem Design and Applications 2009 (ISDA 09), Pisa, Italy, (November 2009)
E. Rich. In M.T. Maybury & W. Wahlster (Eds.), Readings in intelligent user interfaces (pp. 329-341), Seite 329--342. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (1998)