@inproceedings{Ahl2008,Author = {Ahlers, Dirk and Boll, Susanne and Wichmann, Daniel},Title = {Virtual signposts for location-based story-telling},Year = {2008},Month = {01},Booktitle = {6th Geographic Information Days GI-Days 2008},type = {inproceedings}}@COMMENT{Bibtex file generated on }