SmartWeb Handheld - Multimodal Interaction with Ontological Knowledge Bases and Semantic Web Services. - Daniel Sonntag; Ralf Engel; Gerd Herzog; Alexander Pfalzgraf; Norbert Pfleger; Massimo Romanelli; Norbert Reithinger (Artifical Intelligence for Human Computing, 2007)

The babbleTunes system: talk to your ipod! - Jan Schehl; Alexander Pfalzgraf; Norbert Pfleger; Jochen Steigner (ICMI, 2008)