533.6 | P91 | Preston, J. H. The Experemental Determination of the Two-Dimentonal Interference on a Large Chord Piercy 12/40 Aerofoil in a Closed Tunnel fitted with a Flexible Roof and Floor [Текст] / Ministry Of Aircraft Production. — London : His Majesty's Stationery Office, 1944. — 14 p. |
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