The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "series" appeared
2001-03-06 : the EURO. OUR money2000-11-02 : First ECB Central Banking Conference, 2-3 November 2000, Frankfurt am Main
2000-07-05 : Presentation of the ECB's Annual Report 1999 to the European Parliament
1999-12-03 : Monetary policy-making under uncertainty