Chebotareva, Mariia, and Peter Friedrich. “Mikroökonomische Modelle für Functional Overlapping Competing Jurisdictions (FOCJ)”. Estonian Discussions on Economic Policy 25, no. 1 (September 19, 2017). Accessed May 3, 2024. https://ojs.utlib.ee/index.php/TPEP/article/view/13724.