K. W. Rothschild, “Small Is Beautiful: Zum 100. Geburtstag von Ernst Friedrich (Fritz) Schumacher”, WUG, vol. 36, no. 4, pp. 569–576, Oct. 2010, Accessed: Mar. 23, 2026. [Online]. Available: https://journals.akwien.at/index.php/wug/article/view/772