The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "influence" appeared
2000-07-06 : Introductory statement with Q&A2000-06-08 : Introductory statement with Q&A
1998-11-20 : The International Role of the Euro and the ESCBs Monetary Policy
1997-11-27 : Monetary policy in Europe - Quo Vadis?