EBSEES: 3 hits for European Union countries

The European Bibliography of Slavic and East European Studies (EBSEES) collects books, journal articles, reviews and dissertations from Eastern Europe (former countries of Eastern Bloc) which were published in Belgium, Germany, Finland, France, Great Britain, the Netherlands, Austria and Switzerland from 1991 to 2007. The segment "Literature" and "Culture" of the European Bibliography of Slavic and East European Studies contains 18.000 bibliographic entries (from the total asset of 85.000). More information can be found here.

Your search for European Union countries provides 3 hits
1	Navigating between policy and populace: Estonia, its accession referendum and the EU Convention, in: L'Union européenne élargie: acteurs et processus. Ed. par Dorota Dakowska et Laure Neumayer Pettai, Vello; Veebel, Viljar, in: Politique européenne 15, 2005, pp. 113-135
2	La mise en oeuvre de Schengen: la délivrance des visas en Bulgarie [Žileva] Jileva, Elena, in: Cultures et conflits 50, 2003, pp. 31-48
3	L'Europe à 25 in: Questions internationales, 2004, pp. 4-83

The European Bibliography of Slavic and East European Studies (EBSEES) - 1991-2007

Navigating between policy and populace: Estonia, its accession referendum and the EU Convention, in: L'Union européenne élargie: acteurs et processus. Ed. par Dorota Dakowska et Laure Neumayer

La mise en oeuvre de Schengen: la délivrance des visas en Bulgarie

L'Europe à 25