The webapp provides for each item the link on ECB's website.
Speeches for : Sirkka Hamalainen where "differences" appeared
2003-04-07 : The euro: making progress2001-10-16 : Integration of the euro area financial markets
2000-11-23 : The ECB, the euro and the integration of financial and mortgage markets
1999-04-24 : The Euro: Europe's new currency and the role of the ECB
1998-11-12 : Achieving a credible euro - the role of the ESCB's monetary policy