* "Colorado: a historical atlas": a book with 112 all kind of maps http://www.oupress.com/ECommerce/Book/Detail/1963/colorado
* This month Library of Congress journal is dedicated to maps (PDF) https://www.loc.gov/lcm/pdf/LCM_2016_0910.pdf * IBM made a database as a service for the geodata world https://cloudant.com/product/cloudant-features/geospatial/ * QGIS & R spatial analysis online course https://www.udemy.com/core-spatial-data-analysis-with-r-and-qgis/ * Spatial analysis of Madrid public transport network https://geogeeks.maps.arcgis.com/apps/MapJournal/index.html?appid= 540fc7207ee246609abfc01374110272 Raf
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