TY - BOOK AU - Ritrovato,Pierluigi TI - Towards the learning grid: advances in human learning services SN - 0253035347 PY - 2005/// CY - Washington, DC PB - IOS Press KW - Web-based instruction KW - Europe KW - Computer-assisted instruction KW - Internet in education KW - Educational technology N1 - Includes bibliographical references and index ER -