Lawrence Sperry (Norwegian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Lawrence Sperry" in Norwegian language version.

refsWebsite

Global rank Norwegian rank

7^th place

33^rd place

1nationalaviation.org

low place

low place

1historynet.com

2,172^nd place

2,960^th place

1books.google.com

3^rd place

36^th place

books.google.com

John Baxter (10. februar 2009). Carnal Knowledge: Baxter's Concise Encyclopedia of Modern Sex. HarperCollins. s. 5. ISBN 978-0-06-087434-6. Besøkt 24. desember 2011.

historynet.com

Scheck, William, Lawrence Sperry: Autopilot Inventor and Aviation Innovator, historynet.com, reprint of November 2004 article in Aviation History, retrieved 21 March 2009

nationalaviation.org

National Aviation Hall of Fame-ID lawrence-burst-sperry-sr^{[Hentet fra Wikidata]}

nytimes.com

nytimes.com

«Elmer Sperry Dies. Famous Inventor». New York Times. 17. juni 1930. Besøkt 21. desember 2012. «Another son, Lawrence B., lost his life in 1925 while flying over the North Sea in a plane of his own design. ...»

query.nytimes.com

«NO TRACE OF SPERRY; PLANE FOUND INTACT; Machine Landed Neatly in the Calm Sea and He Could Have Clung to It. MAY HAVE TRIED TO SWIM Hunt Is Abandoned, but His Wife and Friends Here Are Still Hopeful.». The New York Times. 15. desember 1923.