English operator: Panoramio described at URL: https://web.archive.org/web/20161101132641/http://www.panoramio.com/photo/112036644...
English French Minerve adapte un mors à Pégase avec l'aide de Mercure, tableau de Jan Boeckhorst. determination method or standard: SHA-1...
archive.org/web/20161025224010/http://www.panoramio.com/user/2324749?with_photo_id=80026930 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161027020902/http://www.panoramio.com/user/2324749?with_photo_id=82360848 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161024230105/http://www.panoramio.com/user/6923820?with_photo_id=75001909 operator: Panoramio described at URL: https://web.archive...