A Signing Avatar on the WWW. - Margriet Verlinden; Corrie Tijsseling; Han Frowein (Gesture Workshop, 2001)

Tele-monitoring and Assistant System for People with Hearing Deficiencies: First Results from a User Requirement Study. - Markus Meis; Jens-E. Appell; Volker Hohmann; Nic van Son; Han Frowein; Anne-Marie Öster; Andreas Hein 001 (ECEH, 2007)