TY - BOOK AU - Ehlers,Ulf-Daniel ED - European Center for the Development of Vocational Training (CEDEFOP) TI - Quality in e-learning: use and dissemination of quality approaches in European e-learning : a study by the European Quality Observatory SN - 9289604107 U1 - 370.113 21 PY - 2005///. CY - Luxembourg: PB - Office for Official Publications of the European Communities, KW - Computer-assisted instruction KW - Europe KW - Internet in education KW - Web-based instruction N1 - Includes bibliographical references ER -