"id","author_first1","author_last1","title","year","publication","volume","issue","pages","keyword0","keyword1","keyword2","keyword3","type" "45","Robert","Ladrech","Partisanship and party formation in European Union politics. development of transnational parties in the EU","1997","Comparative Politics","29","Jan.","167-185","Development","European Union","Political System","Politics","journal"