1. J.-W. Mueller , What is Populism? (University of Pennsylvania Press, 2016)
2. S.M. Elkins and E.L. McKittrick , The Age of Federalism (Oxford University Press, 1993), 10–11
3. The Cycles of Separation-of-Powers Jurisprudence
4. C.R. Sunstein , The Partial Constitution (Harvard University Press, 1998)
5. R. Hirschl , Comparative Matters (Oxford University Press, 2014)