English operator: Panoramio described at URL: https://web.archive.org/web/20161025015801/http://www.panoramio.com/photo/80148428...
English operator: Panoramio described at URL: https://web.archive.org/web/20161012140441/http://www.panoramio.com/photo/17359103...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031183133/http://www.panoramio.com/photo/114597379...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025111427/http://www.panoramio.com/photo/86162902...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025023811/http://www.panoramio.com/photo/78670409...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027031848/http://www.panoramio.com/photo/78670506...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030171524/http://www.panoramio.com/photo/114535303...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027182811/http://www.panoramio.com/photo/94420123...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026212848/http://www.panoramio.com/photo/78670451...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025211352/http://www.panoramio.com/photo/78670449 determination method...