Search for: [References = "Ratti, R. \(1993\). Spatial and Economic Effect of Frontiers. Overview of Traditional and New Approaches and Theories of Border Area Development. In R., Ratti \& S., Reichman \(Eds.\). Theory and Practice of Transborder Cooperation. Basel \- Frankfurt am Main\: Verlag Helbig \& Lichtenhahn."]

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