The Measurement of Subjective Probability: https://www.cambridge.org/core/elements/measurement-of-subjective-probability/2E14CEF2D9759DFA3CE954CB3F118065
The Measurement of Subjective Probability: https://www.cambridge.org/core/elements/measurement-of-subjective-probability/2E14CEF2D9759DFA3CE954CB3F118065