EyeSchool: An Educational Assistive Technology for People with Disabilities - Passing from Single Actors to Multiple-Actor Environment. - Cristina Popescu; Nadine Vigouroux; Mathieu Muratet; Julie Guillot; Petra Vlad; Frédéric Vella; Jawad Hajjam; Sylvie Ervé; Nathalie Louis; Julie Brin; Joseph Colineau; Thierry Hobé; et al. (ICCHP (2), 2014)