English operator: Panoramio described at URL: https://web.archive.org/web/20161102204350/http://www.panoramio.com/photo/98268138...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023154408/http://www.panoramio.com/photo/56191709...
RCE.jpg File:Panoramio - henkiedenkie - Prins Willem-Alexanderweg - Koninklijke bibliotheek.jpg File:Voorgevel - 's-Gravenhage - 20087132 - RCE.jpg File:Voorgevel...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030063051/http://www.panoramio.com/photo/94028196...
English operator: Panoramio described at URL: https://web.archive.org/web/20161023110625/http://www.panoramio.com/photo/61826517...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028204315/http://www.panoramio.com/photo/105578384...
archive.org/web/20161015082340/http://www.panoramio.com/user/4306740?with_photo_id=33515358 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028122240/http://www.panoramio.com/photo/94028181...
English operator: Panoramio described at URL: https://web.archive.org/web/20161031172336/http://www.panoramio.com/photo/117027535 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161012082202/http://www.panoramio.com/photo/18227013 determination method...