@inproceedings{TUC-CSCW/HPOZVBM05, author = "H. U. Hoppe and N. Pinkwart and M. Oelinger and S. Zeini and F. Verdejo and B. Barros and J. I. Mayorga", title = "Building Bridges within Learning Communities through Ontologies and "Thematic Objects"", year = 2005, booktitle = "Computer Supported Collaborative Learning 2005: The Next 10 Years! Proceedings of the International Conference on Computer Supported Collaborative Learning (CSCL)", publisher = "Lawrence Erlbaum Associates" }