Radnitzky, G. (1964) “The Internal Rate of Profit; as a Measure of Profitability. A Metascientific Comment on a Recent Study in Business Economics”., Ledelse og Erhvervsøkonomi, 28. Tilgængelig hos: https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/34108 (Set: 6 december 2025).