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WikiPedia: Ur_(thành_phố) http://www.abutbeirah.com/blog/ http://www.jewishencyclopedia.com/view.jsp?artid=4... http://sumerianshakespeare.com/117701/index.html http://www.museum.upenn.edu/new/exhibits/ur/index.... http://www.sas.upenn.edu/aamw/resources/fieldwork/... http://archeoguide.it/ur/2014/05/16/prima-orto-fot... http://whc.unesco.org/en/list/1481-006 http://www.ur-online.org/ //tools.wmflabs.org/geohack/geohack.php?language=v... http://etcsl.orinst.ox.ac.uk/cgi-bin/etcsl.cgi?sea...