Rui LopesKonstantinos VotisLuís CarriçoSpiridon LikothanassisDimitrios Tzovaras2010-05-212014-11-142010-05-212014-11-1420092009978-1-60558-166-8http://hdl.handle.net/10451/15123http://repositorio.ul.pt/handle/10455/5940engComputer ScienceTowards the Universal Semantic Assessment of Accessibilityjournal article