es Bildes mit einer Brieftauben-Panoramakamera" (in German), Photographica Cabinett (45):  43f. Berger, Olivier (May 2008) (in French) (PDF), Rapport concernant le traitement de conservation-restauration d'une série de petits appareils photographiques pour pigeons, Basel: Art Metal Conservation GmbH, p. 4, http://www.artmetalconservation.com/pdf/dos_apphoto.pdf. Häfliger, Rolf (2008), "Eine Brieftaubenkamera aus der Schweiz?" (in German), Photographica Cabinett (45):  34–43.  (in French) (PDF) Des pigeons photographes ?, Vevey: Musée suisse de l'appareil photographique, 2007, OCLC 428248338, archived from the original on 2011-07-06, http://web.archive.org/web/20110706223037/http://www.cameramuseum.ch/upload/press/pigeons%20catalogue.pdf, ප්‍රතිෂ්ඨාපනය 2014-04-11. බාහිර ඈඳුම්[සංස්කරණය]පරවි ඡායාරූපකරනය හා සබැඳි මාධ්‍ය විකිමාධ්‍ය කොමන්ස් හි ඇත.A YouTube user "newpigeonguy" demonstrates application of the harness and several videos thus obtained. [1] [2]Real birds eye view! Gold