archive.org/web/20161013191826/http://www.panoramio.com/user/3451733?with_photo_id=28906688 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161027234654/http://www.panoramio.com/user/5095076?with_photo_id=100153350 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161028101323/http://www.panoramio.com/user/745563?with_photo_id=92044950 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161022074822/http://www.panoramio.com/user/3871104?with_photo_id=54585760 operator: Panoramio described at URL: https://web.archive...
compatible license as the original. https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030034831/http://www.panoramio.com/photo/98261325...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028103302/http://www.panoramio.com/photo/98221853...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102235536/http://www.panoramio.com/photo/124437535...
original. https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English Slides used for the Feb 27...
original. https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English Speaker notes and slides from...
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