http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
An Internet based adaptive educational system for the greek sign language. CTI Technical Report TR 2000/02/02
Penellope Markellou, Maria Rigou, Spiros Sirmakessis,Athanasios Tsakalidis