English operator: Panoramio described at URL: https://web.archive.org/web/20161025101638/http://www.panoramio.com/photo/89004059...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030085627/http://www.panoramio.com/photo/91454081...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028104913/http://www.panoramio.com/photo/91454043...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028010220/http://www.panoramio.com/photo/91454061...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028104953/http://www.panoramio.com/photo/91454049...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025092451/http://www.panoramio.com/photo/89004279...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024220159/http://www.panoramio.com/photo/89004219...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025074057/http://www.panoramio.com/photo/89004241...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024185110/http://www.panoramio.com/photo/89004267...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029071605/http://www.panoramio.com/photo/91454054 determination method...