Mauricio Orozco Trujillo Matthew Graydon Shervin Shirmohammadi Abdulmotaleb El Saddik Using Haptic Interfaces for User Verification in Virtual Environments. 25-30 2006 VECIMS https://doi.org/10.1109/VECIMS.2006.250784 https://www.wikidata.org/entity/Q61656342 conf/vecims/2006 db/conf/vecims/vecims2006.html#TrujilloGSE06