Usuaris enriquint col·leccions http://www.psfk.com/2011/02/citizen-cartography-collectively-generated-archives-of-data-from-historical-maps.html Raf -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.osgeo.org/pipermail/barcelona/attachments/20110310/ffc1c603/attachment.html