The webapp provides for each item the link on ECB's website.
Speeches for : Otmar Issing where "extent" appeared
2005-06-16 : European integration - achievements and challenges2005-05-20 : One size fits all! A single monetary policy for the euro area
2002-10-25 : Second ECB Central Banking Conference 24-25 October 2002, Frankfurt am Main
2001-05-11 : The European Monetary Union in a globalised world
2000-06-28 : New Technologies in Payments: A Challenge to Monetary Policy
1999-05-07 : The euro area economy on its way to the new millennium
1998-07-02 : Crisis prevention: IMF surveillance, need for new teeth?