1. Ivo Duchacek, Comparative Federalism: The Territorial Dimension of Politics (Lanham: University Press of America, 1987).
2. William H. Riker, Federalism: Origin, Operation, Significance (Boston: Little Brown 1964)
3. Mikhail Filippov, Peter Ordeshook and Olga Shvetsova, Designing Federalism: A Theory of Self-Sustainable Federal Institutions (Cambridge: Cambridge University Press, 2004).
4. Peter Reddaway and Robert W. Orttung (eds), The Dynamics of Russian Politics: Putin’s Reform of Federal-Regional Relations, vol.1 (Lanham: Rowman & Littlefleld Publishers Inc., 2004)
5. Lynn D Nelson and Irina Y. Kuzes, “Political and Economic Coordination in Russia’s Federal District Reform: A Study of Four Regions”, Europe-Asia Studies 55, 4, 2003, pp. 507–20.