photographer author name string: Rio-Antirrio Ferries URL: https://web.archive.org/web/20161101121214/http://www.panoramio.com/user/7942420?with_photo_id=123728846...
Rio-Antirrio Ferries URL: https://web.archive.org/web/20161027184828/http://www.panoramio.com/user/7942420?with_photo_id=97247657 operator: Panoramio...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031233050/http://www.panoramio.com/photo/110526896 determination method...