Television Heritage and the Semantic Web: Video Active and EUscreen. - Johan Oomen; Anna Christaki; Vassilis Tzouvaras (Dublin Core Conference, 2009)

WITH: Human-Computer Collaboration for Data Annotation and Enrichment. - Alexandros Chortaras; Anna Christaki; Nasos Drosopoulos; Eirini Kaldeli; Maria Ralli; Anastasia Sofou; Arne Stabenau; Giorgos Stamou; Vassilis Tzouvaras (WWW (Companion Volume), 2018)