The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "owe" appeared
2002-02-06 : The euro as a catalyst for European integration2001-10-11 : Introductory statement with Q&A
2000-10-28 : Europe's contribution to the stability of financial markets
1998-12-31 : Statement at the joint press conference following the ECOFIN meeting
1998-12-03 : The role of monetary policy in economic policy
1997-06-30 : Farewell to a Central banker