The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "regional" appeared
2002-02-06 : The euro as a catalyst for European integration2001-11-14 : The introduction of the euro, the regions and the accession process
2000-12-19 : The euro: a new currency for Europe
2000-09-08 : The international role of the euro