@book{TUW-120384, author = {Frank, Andrew U.}, title = {Proceedings of the IWWPST '06}, publisher = {GeoInfo Series}, year = {2006}, series = {Geoinfo Series}, address = {Vienna}, editor = {Frank, Andrew U.}, organization = {Institute for Geoinformation and Cartography}, numpages = {133}, isbn = {3-901716-35-1} }