The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "responsible" appeared
2000-09-23 : The role of the ECB at the international level2000-07-06 : Introductory statement with Q&A
1999-10-26 : Presentation of the ECB's Annual Report 1998 to the European Parliament
1998-01-30 : The role of the future European System of Central Banks
1998-01-22 : EMU - How to grasp the opportunities and avoid the risks