@inproceedings{TUW-181135, author = {Gartner, Georg}, title = {The impact of Location Based Services on Wayfinding and Mapping}, booktitle = {Proceedings 6th Int. Symposium on LBS and TeleCartography}, year = {2009}, numpages = {36}, note = {invited; talk: 6th International Symposium on Location Based Services {\&} TeleCartography, Nottingham, UK; 2009-09-02 -- 2009-09-04} }