X-SHAAD: An XML Implementation for Hypermedia Systems Modeling through SHAAD. - David Mérida; Ramón Fabregat; Carlos Arteaga; Anna Urra (ICWE, 2003)

Adaptive Support for Collaborative and Individual Learning (ASCIL): Integrating AHA! and CLAROLINE. - Carlos Arteaga; Ramón Fabregat; Jorge Eyzaguirre; David Mérida (AH, 2004)