Richard Wetzel, Lisa Blum, Leif Oppermann. Tidy city: a location-based game supported by in-situ and web-based authoring tools to enable user-created content. In Magy Seif El-Nasr, Mia Consalvo, Steven K. Feiner, editors, International Conference on the Foundations of Digital Games, FDG '12, Raleigh, NC, USA, May 29 - June 01, 2012. pages 238-241, ACM, 2012. [doi]