English operator: Panoramio described at URL: https://web.archive.org/web/20161019144634/http://www.panoramio.com/photo/56002940...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028153450/http://www.panoramio.com/photo/101615450...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013145518/http://www.panoramio.com/photo/26684206...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023135759/http://www.panoramio.com/photo/56003130...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013145517/http://www.panoramio.com/photo/26684205 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027173854/http://www.panoramio.com/photo/106945648...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027234731/http://www.panoramio.com/photo/106945652...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027234730/http://www.panoramio.com/photo/106945651...
English operator: Panoramio described at URL: https://web.archive.org/web/20161020221937/http://www.panoramio.com/photo/56002701...
archive.org/web/20161030060929/http://www.panoramio.com/user/558771?with_photo_id=94782503 operator: Panoramio described at URL: https://web.archive...