English operator: Panoramio described at URL: https://web.archive.org/web/20161015145332/http://www.panoramio.com/photo/31728405 determination method...
Nikolai Karaneschev URL: https://web.archive.org/web/20161030135145/http://www.panoramio.com/user/3794713?with_photo_id=127768082 operator: Panoramio...