%0 Conference Paper %B Proceedings of the 13th International Conference on Virtual Systems and Multimedia (VSMM) %D 2007 %T Adding Semantic Annotations, Navigation Paths and Tour Guides to Existing Virtual Environments %A F. Kleinermann %A O. De Troyer %A C. Creelle %A B. Pellens %C Brisbane, Australia %I Springer-Verlag %P 50-62