The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "emphasise" appeared
2003-09-05 : Changing fortunes: financing world growth2001-11-14 : The introduction of the euro, the regions and the accession process
2001-03-06 : the EURO. OUR money
1999-02-09 : The single European monetary policy
1998-10-13 : Introductory statement with Q&A