Scharpf, Fritz W. Problemlösungsfähigkeit der Mehrebenenpolitik in Europa, MPI for the Study of Societies, Max Planck Society;
mpifg_dp18_7.pdf (Any fulltext), 3MB
Scharpf, F. W. (2018). There Is an Alternative: A Two-Tier European Currency Community. MPIfG Discussion Paper, 18/7.