Vincenti, Walter G. (1986), "The Davis Wing and the Problem of Airfoil Design: Uncertainty and Growth in Engineering Knowledge", Technology and Culture, 27 (4): 717–758, doi:10.2307/3105326, JSTOR3105326, S2CID112031158
Baugher, Joe. "Consolidated C-109".USAAC/USAAF/USAF Bombers: The Consolidated B-24 Liberator, 16 August 1999. Retrieved: 15 June 2010.
Baugher, Joe. "Consolidated PB4Y-1."USAAC/USAAF/USAF Bombers: The Consolidated B-24 Liberator, 18 August 1999. Retrieved: 15 June 2010.
jstor.org
Vincenti, Walter G. (1986), "The Davis Wing and the Problem of Airfoil Design: Uncertainty and Growth in Engineering Knowledge", Technology and Culture, 27 (4): 717–758, doi:10.2307/3105326, JSTOR3105326, S2CID112031158
Vincenti, Walter G. (1986), "The Davis Wing and the Problem of Airfoil Design: Uncertainty and Growth in Engineering Knowledge", Technology and Culture, 27 (4): 717–758, doi:10.2307/3105326, JSTOR3105326, S2CID112031158
telegraph.co.uk
"Walter Matthau". The Telegraph. 3 July 2000. Archived from the original on 11 January 2022. Retrieved 21 September 2017.