English operator: Panoramio described at URL: https://web.archive.org/web/20161102120132/http://www.panoramio.com/photo/107419085...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029041800/http://www.panoramio.com/photo/101057787...
English operator: Panoramio described at URL: https://web.archive.org/web/20161024184701/http://www.panoramio.com/photo/80263316...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025062854/http://www.panoramio.com/photo/79487767 determination method...
archive.org/web/20161023170436/http://www.panoramio.com/user/3451733?with_photo_id=62831764 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161103001621/http://www.panoramio.com/user/6452510?with_photo_id=119607466 operator: Panoramio described at URL: https://web.archive...
DescriptionBreakdownTreeWikimediaCommonsCategoryRoyalLibraryTheHague 01102013.pdf Nederlands: Deze PDF laat de breakdown dd 01-10-2013 van de Category:Royal...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028171619/http://www.panoramio.com/photo/104409698 determination method:...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025055611/http://www.panoramio.com/photo/84494533...
archive.org/web/20161102005407/http://www.panoramio.com/user/3451733?with_photo_id=25598965 operator: Panoramio described at URL: https://web.archive...