Christian Müller-Tomfelde Interaction Sound Feedback in a Haptic Virtual Environment to Improve Motor Skill Acquisition. 2004 conf/icad/2004 ICAD http://www.icad.org/websiteV2.0/Conferences/ICAD2004/posters/mueller-tomfelde.pdf db/conf/icad/icad2004.html#Muller-Tomfelde04