@incollection{TUW-224446, author = {Gartner, Georg}, title = {Advances in Location-Based Services}, booktitle = {Developments in the Theory and Practice of Cybercartography}, year = {2014}, editor = {Taylor, Fraser and Lauriault, Tracey P.}, pages = {97--106}, publisher = {Elsevier}, isbn = {9780444627131}, note = {invited} }