Grønnegård Christensen, Jørgen. “Elinor Ostrom, Governing the Commons. The Evolution of Institutions for Collective Action, New York: Cambridge University Press, 1990, 280 s., $ 14.95”. Politica 24, no. 1 (januar 1, 1992): 103. Set december 6, 2025. https://tidsskrift.dk/politica/article/view/69395.