Bulgaria: EP Elections a Rehearsal for Early National Elections
EPIN publication with a general introduction and case studies from 11 Member States (Bulgaria, Finland, France, Germany, Greece, Italy, The Netherlands, Poland, Romania, Spain and the UK)
"Between Apathy and Anger: Challenges to the Union from the 2014 Elections to the European Parliament"
http://www.ceps.eu/book/between-apathy-and-anger-challenges-union-2014-elections-european-parliament