Eleni Efthimiou, Georgios Kouroupetroglou, Stavroula-Evita Fotinea: Gesture and Sign Language in Human-Computer Interaction and Embodied Communication - 9th International Gesture Workshop, GW 2011, Athens, Greece, May 25-27, 2011, Revised Selected Papers. Lecture Notes in Computer Science 7206, Springer 2012, ISBN 978-3-642-34181-6