Vasiliki Demesticha Jaroslav Gergic Jan Kleindienst Marion Mast Lazaros Polymenakos Henrik Schulz Ladislav Serédi Aspects of Design and Implementation of a Multi-Channel and Multi-Modal Information System. 312-319 2001 ICSM http://computer.org/proceedings/icsm/1189/11890312abs.htm db/conf/icsm/icsm2001.html#DemestichaGKMPSS01