Hansen, Bent. “Karl Marx and the Close of His System. By Eugen Von Böhm-Bawerk. Bohm-Bawerk’s Criticism of Marx. By Rudolf Hilferding”. Nationaløkonomisk Tidsskrift 88 (januar 1, 1950). Set december 5, 2025. https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/60453.