@article{TUW-119271, author = {Martinez-Asenjo, Belen and Frank, Andrew U.}, title = {An Economic Overview of European NMAs Transformation from Government Departments into Public Corporations}, journal = {Geoinformatics}, year = {2002}, volume = {Jan/Feb}, url = {ftp://ftp.geoinfo.tuwien.ac.at/martinez/economic_overview_martinez_geoinformatics.pdf} }