Markus Meis Jens-E. Appell Volker Hohmann Nic van Son Han Frowein Anne-Marie Öster Andreas Hein 0001 Tele-monitoring and Assistant System for People with Hearing Deficiencies: First Results from a User Requirement Study. 163-175 2007 conf/eceh/2007 ECEH db/conf/eceh/eceh2007.html#MeisAHSFOH07 https://dl.gi.de/handle/20.500.12116/22162 http://subs.emis.de/LNI/Proceedings/Proceedings118/article1941.html