Alexander Dahl (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Alexander Dahl" in German language version.

Last modified: 22:30:00, 1 March 2026 (UTC)

Ref.Un. Ref.Website

Global rank German rank

21thulescientific.com

low place

low place

11ballon-bve.de

low place

low place

ballon-bve.de (Global: low place; German: low place)

Geschichte des Ballonfahrtvereins Essen, abgerufen am 24. September 2018

thulescientific.com (Global: low place; German: low place)

vgl. David K. Lynch: Visually discerning the curvature of the Earth. In: Applied Optics. Band 47, Nr. 34, Dezember 2008, S. H39–43 (englisch, thulescientific.com [PDF; 4,4 MB; abgerufen am 17. August 2018]).