http://www.eugeo.org/	381
http://www.gatm.org.uk/	301
http://www.census.gov/	286
http://www.ined.fr/	318
http://epp.eurostat.ec.europa.eu/portal/page/portal/eurostat/home	265
http://www.un.org/en/development/desa/population	321
http://www.lib.utexas.edu/maps/index.html	325
http://www.nationalgeographic.com/	311
http://www.mondialisations.org/php/public/index.php	312
http://www.inegalites.fr/	292
http://www.herodote.org/index.php	278
http://www.worldmapper.org/	297
http://www.transnationale.org/	283
http://project.oldmapsonline.org/collections	272
http://www.daftlogic.com/projects-google-maps-distance-calculator.htm	310