@article{TUW-252878, author = {Hofer, Hannes and Retscher, G{\"u}nther}, title = {Smartphone Navigation anhand von ''intelligenten Check-Points''}, journal = {{\"O}sterreichische Zeitschrift f{\"u}r Vermessung und Geoinformation (VGI), begutachteter Beitrag}, year = {2016}, volume = {104}, number = {2}, pages = {61--71}, note = {invited} }