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]. 1. januar 1964 [henvist 20. oktober 2024];28. Tilgængelig hos: https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/34191