English operator: Panoramio described at URL: https://web.archive.org/web/20161029071605/http://www.panoramio.com/photo/91454054 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025084033/http://www.panoramio.com/photo/89003881...
English operator: Panoramio described at URL: https://web.archive.org/web/20161026184524/http://www.panoramio.com/photo/89004084...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030112326/http://www.panoramio.com/photo/107961714...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027011236/http://www.panoramio.com/photo/89004314...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025092356/http://www.panoramio.com/photo/89004273...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024174014/http://www.panoramio.com/photo/89004284...
English operator: Panoramio described at URL: https://web.archive.org/web/20161113074503/http://www.panoramio.com/photo/48534764...
English operator: Panoramio described at URL: https://web.archive.org/web/20161114115757/http://www.panoramio.com/photo/48984235...
English operator: Panoramio described at URL: https://web.archive.org/web/20161017222830/http://www.panoramio.com/photo/48184103...