of Saxony English operator: Panoramio described at URL: https://web.archive.org/web/20161031050511/http://www.panoramio.com/photo/111830356 determination...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101053008/http://www.panoramio.com/photo/111830339 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102113930/http://www.panoramio.com/photo/111830392 determination method...
2400 1800 English operator: Panoramio described at URL: https://web.archive.org/web/20161031122716/http://www.panoramio.com/photo/111830374 determination...
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