The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "vigilant" appeared
2001-06-07 : Introductory statement with Q&A2001-05-10 : Introductory statement with Q&A
2000-03-30 : Introductory statement with Q&A
2000-01-05 : Introductory statement with Q&A