The webapp provides for each item the link on ECB's website.
Speeches for : Otmar Issing where "convergence" appeared
2005-04-27 : The enlargement of the EU and the euro zone2004-12-06 : Interview with Prof. Otmar Issing, (Delo, Slovenian daily newspaper)
2004-10-22 : EU enlargement and monetary integration
2004-10-20 : ECB Convergence Report 2004 Press Briefing Background Information
2004-06-10 : On the primacy of price stability
2003-02-28 : Considerations on monetary policy strategies for accession countries