Elena: A Mediation Infrastructure for Educational Services.

@inproceedings{simon-2003-elena, author = {Bernd Simon and Zolt\'{a}n Mikl\'{o}s and Wolfgang Nejdl and Michael Sintek and Joaqu\'{i}n Salvach\'{u}a}, editor = {Guszt\'{a}v Hencsey and Bebo White and Yih-Farn Robin Chen and L\'{a}szl\'{o} Kov\'{a}cs and Steve Lawrence}, title = {{Elena: A Mediation Infrastructure for Educational Services}}, booktitle = {{Proceedings of the Twelfth International World Wide Web Conference - Alternate Paper Tracks, WWW 2003, Budapest, Hungary, May 20-24, 2003}}, year = {2003} }