TY - CHAP U1 - Konferenzveröffentlichung A1 - Richter, Thomas T1 - Identifying E-Learning Resources for Reuse T2 - Paulsen, Szücs (Eds.): Learning and Sustainability – The New Ecosystem of Innovation and Knowledge. Proceedings of the 20th EDEN 2011 Annual Conference, Dublin, Ireland, 19-22 June 2011 Y1 - 2011 SP - 163 EP - 171 PB - Curran Associates CY - Red Hook, NY ER -