The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "estimate" appeared
2003-10-02 : Introductory statement with Q&A2002-09-24 : The first nine months of the euro cash era
2001-08-30 : Introductory statement with Q&A
2000-03-20 : Hearing before the Committee on Economic and Monetary Affairs of the European Parliament
1998-12-01 : Introductory statement with Q&A
1998-12-01 : Introductory statement with Q&A
1997-06-30 : Farewell to a Central banker