http://www.eugeo.org/	162
http://www.gatm.org.uk/	117
http://www.census.gov/	122
http://www.ined.fr/	117
http://epp.eurostat.ec.europa.eu/portal/page/portal/eurostat/home	117
http://www.un.org/en/development/desa/population	120
http://www.lib.utexas.edu/maps/index.html	128
http://www.nationalgeographic.com/	131
http://www.mondialisations.org/php/public/index.php	122
http://www.inegalites.fr/	117
http://www.herodote.org/index.php	110
http://www.worldmapper.org/	126
http://www.transnationale.org/	107
http://project.oldmapsonline.org/collections	110
http://www.daftlogic.com/projects-google-maps-distance-calculator.htm	115