English operator: Panoramio described at URL: https://web.archive.org/web/20161031123157/http://www.panoramio.com/photo/112749032...
operator: Panoramio described at URL: https://web.archive.org/web/20161031042012/http://www.panoramio.com/photo/113848145 determination method: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102233420/http://www.panoramio.com/photo/113850206 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161017084826/http://www.panoramio.com/photo/43680577 determination method...
operator: Panoramio described at URL: https://web.archive.org/web/20161101050505/http://www.panoramio.com/photo/113848133 determination method: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030151558/http://www.panoramio.com/photo/112749115 determination method...
und Leipzig ohne Jahr (ca. 1818). Perlachturm 2014, Nikolai Karaneschev, File:Augsburg Perlachturm - panoramio (1).jpg Author G. H. Kayser, Nikolai Karaneschev...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102052045/http://www.panoramio.com/photo/111276443 determination method...
English operator: Panoramio described at URL: https://web.archive.org/web/20161016172536/http://www.panoramio.com/photo/43859276 determination method...
Panoramio described at URL: https://web.archive.org/web/20161014175439/http://www.panoramio.com/photo/39219422 determination method or standard: SHA-1...