English operator: Panoramio described at URL: https://web.archive.org/web/20161030041656/http://www.panoramio.com/photo/109905295...
English Nessebar, Bulgaria. operator: Panoramio described at URL: https://web.archive.org/web/20161101085235/http://www.panoramio.com/photo/122206510...
archive.org/web/20161017095518/http://www.panoramio.com/user/3879746?with_photo_id=42849233 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161025144130/http://www.panoramio.com/user/4499131?with_photo_id=76153411 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102195755/http://www.panoramio.com/photo/122206534...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031093724/http://www.panoramio.com/photo/122140877...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031201014/http://www.panoramio.com/photo/122016628...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101100001/http://www.panoramio.com/photo/122206506 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102195754/http://www.panoramio.com/photo/122206533...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031062255/http://www.panoramio.com/photo/122206521...