The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "energy" appeared
2003-05-08 : Introductory statement with Q&A2002-03-07 : Introductory statement with Q&A
2000-11-10 : The euro and the single monetary policy
2000-10-19 : Introductory statement with Q&A
2000-10-05 : Introductory statement with Q&A
1999-06-02 : Introductory statement with Q&A