The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "economist" appeared
2003-05-19 : New economy, financial markets and monetary policy2001-05-31 : The role of financial markets for economic growth
2000-11-02 : First ECB Central Banking Conference, 2-3 November 2000, Frankfurt am Main
1999-12-03 : Monetary policy-making under uncertainty