Johnsen E. C. Jackson Grayson, Jr., Decisions Under Uncertainty Drilling Decisions by Oil and Gas Operators, Harvard Business School, Boston, 1960, 402 s., Dollars. le [Internet]. 1964 Jan. 1 [cited 2025 Dec. 6];28. Available from: https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/34191