Jay Bergman, “Valerii Chkalov: Soviet Pilot as New Soviet Man,” Journal of Contemporary History 33, No. 1 (Jan. 1998), http://www.jstor.org/stable/261001, p. 139.
Scott W. Palmer, “Icarus, East: The Symbolic Contexts of Russian Flight,” The Slavic and East European Journal 49, no. 1 (Spring, 2005), http://www.jstor.org/stable/20058219, p. 44.