The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "studies" appeared
2003-05-08 : Press seminar on the evaluation of the ECB's monetary policy strategy2002-07-05 : International Research Forum on Monetary Policy
2002-06-13 : The euro as a catalyst for integration and competition in EMU
1999-12-03 : Monetary policy-making under uncertainty