English operator: Panoramio described at URL: https://web.archive.org/web/20161014042859/http://www.panoramio.com/photo/26684457...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023165319/http://www.panoramio.com/photo/56003035...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023165318/http://www.panoramio.com/photo/56003034...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027234815/http://www.panoramio.com/photo/106945657...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029173254/http://www.panoramio.com/photo/106945627...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102041218/http://www.panoramio.com/photo/124739969...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023165332/http://www.panoramio.com/photo/56003039...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101190626/http://www.panoramio.com/photo/92580341...
English operator: Panoramio described at URL: https://web.archive.org/web/20161020035300/http://www.panoramio.com/photo/55039434...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101190643/http://www.panoramio.com/photo/92580344 determination method...