↑ Green and Swanborough Air International January 1991, p. 28.
Tài liệu
Donald, David (ed.) The Encyclopedia of Civil Aircraft. London:Aurum Publishing. 1999. ISBN 1-85410-642-2.
Green, William and Gordon Swanborough. "The Beautiful Blitz". Air International, January 1991, Vol 40 No 1. Stamford, UK:Key Publishing. pp. 25–33. ISSN 0306-5634.
Nowarra, Heinz. Heinkel He111 A Documentary History. Jane's Publishing Co Ltd. 1980. ISBN 0-7106-0046-1.
Smith, J.R. and Kay, A.L. German Aircraft of the Second World War. London: Putnam. 1972. ISBN 85177 836 4.
Price, Alfred. Spitfire: A Documentary History. London: Macdonald and Jane's, 1977. ISBN 0-354-01077-8.
Townend, David, R. Thunderbolt & Lightning—The History of Aeronautical Namesakes. AeroFile Publications. 2009. ISBN 978-0-9732020-2-1.
Green, William. "Warplanes of the Second World War - Bombers and Reconnaissance Aircraft, Volume Nine" Macdonald: London, 1967.
