^Jean-Paul Barbier Des Châlonnais célèbres, illustres et mémorables, 2000. http://www.artnet.com/artist/667967/louis-robert-antral.html
^"Idbury Prints: An online gallery of original fine art prints". Archived from the original on September 4, 2011.{{cite web}}: CS1 maint: unfit URL (link)