Flugzeugkollision über dem Grand Canyon (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Flugzeugkollision über dem Grand Canyon" in German language version.

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1theatlantic.com

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655^th place

1web.archive.org

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fss.aero

Midair collision, Accident Investigation Report, Trans World Airlines Lockheed 1049A N6902C and United Air Lines Douglas DC-7 N6324C, over the Grand Canyon, Arizona, June 30, 1956. National Transportation Safety Board (NTSB), 17. April 1957, abgerufen am 29. April 2021 (englisch, pdf-Version).

theatlantic.com

The Atlantic: The Site of a 1950s Plane Crash Just Became a National Landmark, 24. April 2014.

web.archive.org

National Park Service: 1956 Grand Canyon TWA-United Airlines Aviation Accident Site – NATIONAL HISTORIC LANDMARK NOMINATION, Februar 2011, S. 6.