1. Spring Books: Hundreds and thousands
2. The Keynes-Knight and the de Finetti-Savage approaches to probability: an economic interpretation;Rogerio & Arthmar;History of Economic Ideas,2016
3. Keynes among the Statisticians;J Aldrich;History of Political Economy,2008
4. Boole, Keynes, and the Interval approach to Probability;Michael Brady;History of Economic Ideas,2012