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Books about Doenhoff:
I.H. Abbott's A. E. von Doenhoff's Theory of Wing Sections(Theory of Wing Sections: Including a SummaryofAirfoilData... by I.H. Abbott A. E. von Doenhoff (1959)
Vor hundert Jahren: Erinnerungen der Gräfin Sophie Schwerin, geb. Gräfin Dönhoff (German Edition) by Amalie von Romberg (Jan 1, 1910)
OstpreuÃŸen. Auf den Spuren von Marion Gräfin Dönhoff by Haug von Kuenheim
Marion Gräfin Dönhoff
Marion Gräfin Dönhoff by Dieter Buhl (Oct 1, 2006)
Marion Dönhoff by Alice Schwarzer (Sep 1, 2008)
Theory of Wing Sections: Including a Summary of Airfoil Data (Dover Books on Aeronautical Engineering) [Paperback... (1959)
Wiki information Doenhoff:
Kasper Denhoff was a Baltic-German noble of the Holy Roman Empire; a noble of the Polish-Lithuanian Commonwealth; Governor of Dorpat Province; and a courtier and diplomat of the Polish-Lithuanian Commonwealth.