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The Metropolitan Museum of Art, New York: metmuseum.org. Web 15 April 2011
http://www.metmuseum.org/.
Dallas Museum of Art, Dallas: dallasmuseumofart.org Web 15 April 2011
http://www.dallasmusuemofart.org/
Minneapolis Institute of Arts, Minneapolis: artsmia.org Web 15 April 2011
http://www.artsmia.org/
British Museum, britishmuseum.org Web 15 April 2011
http://britishmuseum.org/
Canadian Society of MesoAmerican Studies, csms.ca Web 15 April 2011
http://www.csms.ca
