@unpublished{TUW-286475, author = {Giannopoulos, Ioannis}, title = {Augmented Reality im Freien - Vermessung, Visualisierung, Interaktion}, year = {2019}, keywords = {Augmented Reality, Navigation, Vermessung}, note = {invited; talk: OVG Vortr{\"a}ge Wien, Wien; 2019-12-18} }