3 "Ficheiro:Grote_Gracht_-_panoramio.jpg".

Ficheiro:Grote Gracht - panoramio.jpg

archive.org/web/20161101162129/http://www.panoramio.com/user/634768?with_photo_id=118533511 operator: Panoramio described at URL: https://web.archive...

Ficheiro:Oude Tweebergenpoort - Maastricht - panoramio.jpg

archive.org/web/20161019144627/http://www.panoramio.com/user/150095?with_photo_id=19694248 operator: Panoramio described at URL: https://web.archive...

Ficheiro:Maastricht University, Faculty of Arts and Social Sciences - panoramio.jpg

English operator: Panoramio described at URL: https://web.archive.org/web/20161101162158/http://www.panoramio.com/photo/118533512 determination method...

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