The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "lasting" appeared
2003-09-05 : Changing fortunes: financing world growth1999-11-23 : The euro and a social Europe
1999-11-05 : The euro and a dynamic Europe
1999-04-27 : EMU: growth through stability
1999-03-12 : The Eurosystem's strategy for the euro
1999-02-09 : The single European monetary policy