Com va crear-se i crèixer la malla urbana de Manhattan http://www.nytimes.com/interactive/2011/03/21/nyregion/map-of-how-manhattan-grid-grew.html?hp Raf -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.osgeo.org/pipermail/barcelona/attachments/20110322/df7335c0/attachment.html