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Schwerer Gustav Schwerer Panzerspähwagen Schweinfurt Schweizer Hitparade Schweigt stille, plaudert nicht, BWV 211 Schweizer SGS 2-32 Schwetzingen Schweizer SGM 2-37 Schweizer X-26 Frigate SchwerinTài liệu tham khảo
WikiPedia: Schweizer_X-26_Frigate http://www.historynet.com/lockheeds-combined-sailp... http://history.nasa.gov/monograph31.pdf http://www.globalsecurity.org/military/systems/air... http://www.prizecrew.org/ https://commons.wikimedia.org/wiki/Category:Schwei...