B. Sawyer and P. Smith, Serious games taxonomy. Presentation at the The Serious Games Summit at the Game Developers Conference, 2008.

T. M. Rhyne, Computer games and scientific visualization, Communications of the ACM, vol.45, issue.7, pp.40-44, 2002.
DOI : 10.1145/514236.514261

A. Herwig and P. Paar, Game engines: Tools for landscape visualization and planning?, GIS and Virtualization in Environmental Planning and Design, 2002.

D. Fritsch and M. Kada, Visualisation using game engines, Archiwum ISPRS, vol.35, 2004.

P. Zeile, R. Schildwächter, T. Poesch, and P. Wettels, Production of virtual 3d city models from geodata and visualization with 3d-game engines. a case study from the unesco world heritage city of bamberg, Trends in Real-Time Landscape Visualization and Participation, 2005.

J. Döllner, K. Baumann, and H. Buchholz, Virtual 3d city models as foundation of complex urban information spaces, Proceedings of CORP 2006 & Geo- Multimedia 06, 2006.

J. Döllner, T. H. Kolbe, F. Liecke, T. Sgouros, and K. Teichmann, The virtual 3d city model of berlin -managing, integrating, and communicating complex urban information, Proceedings of the 25th Urban Data Management Symposium UDMS 2006, 2006.

M. S. Kibria, S. Zlatanova, L. Itard, and M. Van-dorst, GeoVEs as Tools to Communicate in Urban Projects: Requirements for Functionality and Visualization, 3D Geo-Information Sciences, pp.379-395, 2008.
DOI : 10.1007/978-3-540-87395-2_24

T. H. Kolbe, Representing and Exchanging 3D City Models with CityGML, pp.15-31, 2008.
DOI : 10.1007/978-3-540-87395-2_2
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.475.1679

J. D. Foley, A. Vandam, and S. K. Feiner, Computer Graphics: Principles and Practice in C, 1995.

J. Lansdown and S. Schofield, Expressive rendering: a review of nonphotorealistic techniques, IEEE Computer Graphics and Applications, vol.15, issue.3, pp.29-37, 1995.
DOI : 10.1109/38.376610