?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=K%C3%B6ker&rft.au=K%C3%B6ker%2C+Philipp&rft.aufirst=Philipp&rft.inst=UCL+(University+College+London)&rft.date=28+February+2015&rft.tpages=388&rft.title=Veto+et+Peto%3A+Patterns+of+Presidential+Activism+in+Central+and+Eastern+Europe&rft.degree=Doctoral