Focke-Achgelis Fa 284 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Focke-Achgelis Fa 284" in Polish language version.

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Anthony L. Kay, John Richard Smith: German Aircraft of the Second World War: Including Helicopters and Missiles. Naval Institute Press, 2002, s. 293. ISBN 978-1-55750-010-6. [dostęp 2022-04-22]. (ang.).