C. Correa, und I. Marsic. GROUP '03: Proceedings of the 2003 international ACM SIGGROUP conference on Supporting group work, Seite 125-134. New York, NY, USA, ACM Press, (2003)
D. Swallow, M. Blythe, und P. Wright. EACE '05: Proceedings of the 2005 annual conference on European association of cognitive ergonomics, Seite 91-98. University of Athens, (2005)