Haptic interaction in VR-based paracentesis simulation for dexterity enhancement and assessment. - Costas S. Tzafestas; Yiannis Koumpouros; Kostas Birbas (CARS, 2004)

Pilot Evaluation Study of a Virtual Paracentesis Simulator for Skill Training and Assessment: The Beneficial Effect of Haptic Display. - Costas S. Tzafestas; Kostas Birbas; Yiannis Koumpouros; Dimitris Christopoulos (Presence Teleoperators Virtual Environ., 2008)