The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "requires" appeared
2003-10-22 : Maastricht and the future of Europe2003-06-12 : Key issues for the ECB in the field of payment systems
2002-10-08 : The integration of Europe's financial markets
2002-05-08 : What are the political consequences of the euro?
2001-05-18 : The European Central Bank, the Eurosystem and the European System of Central Banks
2000-09-17 : The euro as a catalyst for legal convergence in Europe
1999-10-15 : EU enlargement, some views from the ECB
1998-06-30 : Ceremony on the occasion of the establishment of the European System of Central Banks