English operator: Panoramio described at URL: https://web.archive.org/web/20161023223221/http://www.panoramio.com/photo/60265986...
English Nessebar, Bulgaria. operator: Panoramio described at URL: https://web.archive.org/web/20161101085235/http://www.panoramio.com/photo/122206510...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025232824/http://www.panoramio.com/photo/80766262 determination method...
operator: Panoramio described at URL: https://web.archive.org/web/20161021193203/http://www.panoramio.com/photo/54372929 determination method: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161021095103/http://www.panoramio.com/photo/54372933 determination method or standard: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024031656/http://www.panoramio.com/photo/60266190 determination method...
operator: Panoramio described at URL: https://web.archive.org/web/20161021192925/http://www.panoramio.com/photo/54372923 determination method: SHA-1...
operator: Panoramio described at URL: https://web.archive.org/web/20161021095124/http://www.panoramio.com/photo/54372937 determination method: SHA-1...
operator: Panoramio described at URL: https://web.archive.org/web/20161021095013/http://www.panoramio.com/photo/54372930 determination method: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014050100/http://www.panoramio.com/photo/29428778...