S. Lau, and K. David. Assistive and Augmentive Communication for the Disabled: Intelligent Technologies for Communication, Learning and Teaching, chapter 6, IGI Global, (May 2011)
C. Voigtmann, S. Lau, and K. David. 2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops), page 403-408. Seattle, USA., IEEE, (March 2011)
S. Lau, N. Klein, A. Pirali, I. König, and K. David. Workshops der Wissenschaftlichen Konferenz Kommunikation in Verteilten Systemen 2009 (WowKiVS 2009), 17, Electronic Communications of the EASST, (2009)