ボルテックス・リング・ステート (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "ボルテックス・リング・ステート" in Japanese language version.

refsWebsite

Global rank Japanese rank

1,009^th place

1,963^rd place

6,745^th place

low place

faa.gov

Rotorcraft Flying Handbook, FAA Manual H-8083-21, Washington, DC: Flight Standards Service, Federal Aviation Administration, U.S. Dept. of Transportation, 2001. ISBN 1-56027-404-2, page 11-5.

Johnson, Wayne. Helicopter theory pp99+106, Courier Dover Publications, 1980. Accessed: 25 February 2012. ISBN 0-486-68230-7