German Panorama von Pedreira operator: Panoramio described at URL: https://web.archive.org/web/20161022034715/http://www.panoramio.com/photo/55170937...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027190551/http://www.panoramio.com/photo/109993535...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014034712/http://www.panoramio.com/photo/28977880 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161014121317/http://www.panoramio.com/photo/29933150 determination method: SHA-1...
operator: Panoramio described at URL: https://web.archive.org/web/20161113161138/http://www.panoramio.com/photo/48749006 determination method: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161016164852/http://www.panoramio.com/photo/47696870 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161029205612/http://www.panoramio.com/photo/101985900...
operator: Panoramio described at URL: https://web.archive.org/web/20161012205034/http://www.panoramio.com/photo/16688922 determination method: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102150358/http://www.panoramio.com/photo/95599226...
English operator: Panoramio described at URL: https://web.archive.org/web/20161101122935/http://www.panoramio.com/photo/121097802...