Voluntereed Geographic Information: The Nature and Motivation of Produsers
Type of publication: | Article |
Citation: | coleman:09-vgi |
Journal: | International Journal of Spatial Data Infrastructures |
Volume: | 4 |
Number: | 332-358 |
Year: | 2009 |
URL: | http://ijsdir.jrc.ec.europa.eu... |
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