Otto Koppen (Norwegian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Otto Koppen" in Norwegian language version.

refsWebsite

Global rank Norwegian rank

2books.google.com

3^rd place

36^th place

1computerrefuge.org

low place

low place

6^th place

42^nd place

1howstuffworks.com

840^th place

1,570^th place

1airventuremuseum.org

low place

low place

low place

low place

1web.archive.org

1^st place

1^st place

405^th place

1,439^th place

aerofiles.com

http://www.aerofiles.com/_fair.html

airventuremuseum.org

http://www.airventuremuseum.org/collection/aircraft/Ford-EAA%20Chapt%20_159%20Flivver.asp

archive.org

Malcolm J. Abzug, E. Eugene Larrabee (2005). Airplane stability and control a history of the technologies that made.

books.google.com

Malcolm J. Abzug, E. Eugene Larrabee (2002). Airplane stability and control. Cambridge University Press. ISBN 978-0-521-80992-4. Besøkt 1. august 2010.
"Flying the World's Slowest Airplane", Popular Science, mars 1956

computerrefuge.org

http://computerrefuge.org/bitsavers/pdf/mit/whirlwind/Redmond_Project_Whirlwind_A_Case_History_Ino_Contemporary_Technology_1975.pdf^{[død lenke]}

highbeam.com

«Otto C. Koppen, 90; MIT professor who designed `helioplane' aircraft». The Boston Globe. 26. januar 1991. Arkivert fra originalen . Besøkt 13. november 2016. «Arkivert kopi». Arkivert fra originalen 5. august 2016. Besøkt 13. november 2016.

howstuffworks.com

science.howstuffworks.com

http://science.howstuffworks.com/transport/flight/classic/ford-tri-motor.htm

web.archive.org

«Otto C. Koppen, 90; MIT professor who designed `helioplane' aircraft». The Boston Globe. 26. januar 1991. Arkivert fra originalen . Besøkt 13. november 2016. «Arkivert kopi». Arkivert fra originalen 5. august 2016. Besøkt 13. november 2016.