147548document52194’Harnessing the Power of Volunteers, the Internet and Google Earth to Collect and Validate Global Spatial Information using Geo-Wiki.pdfapplication/pdfc3af2674570d2279698c61b52aa16c3bMD57360452016-05-03 08:25:59https://pure.iiasa.ac.at/id/eprint/11389/1/%E2%80%99Harnessing%20the%20Power%20of%20Volunteers%2C%20the%20Internet%20and%20Google%20Earth%20to%20Collect%20and%20Validate%20Global%20Spatial%20Information%20using%20Geo-Wiki.pdf