The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "critics" appeared
2003-10-29 : Address delivered on the occasion of a special ECOFIN dinner to pay tribute to his leadership of the European Central Bank2002-04-19 : Some remarks on the euro in a US context
1999-10-11 : The Eurosystem's monetary policy strategy: The first year's experience