@incollection{TUW-140725, author = {Ledermann, Florian}, title = {Spatio-semantic systems for ubiquitous access to spatially structured information}, booktitle = {Semantic Technologies Showcase - The Austrian Situation}, year = {2006}, pages = {63}, organization = {OCG}, publisher = {{\"O}sterreichische Computer Gesellschaft}, address = {Wien}, isbn = {3-902580-01-1}, keywords = {spatial information semantics} }