The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "happen" appeared
2002-09-12 : Introductory statement with Q&A2002-01-03 : Introductory statement with Q&A
2001-06-20 : Euro 2002 Information Campaign
2000-09-14 : Introductory statement with Q&A