Yakovlev AIR-11 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Yakovlev AIR-11" in English language version.

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6^th place

archive.org

Gordon, Yefim; Dmitry; Sergey Komissarov (2005). OKB Yakovlev. Hinkley: Midland Publishing. p. 34. ISBN 1-85780-203-9.
Gordon, Yefim; Gunston, Bill (1997). Yakovlev aircraft since 1924 (1. publ. ed.). London: Putnam. p. 37. ISBN 0851778720.