The webapp provides for each item the link on ECB's website.
Speeches for : Sirkka Hamalainen where "require" appeared
2002-03-26 : Implementing monetary policy in the euro area2000-05-05 : Conference on the Operational Framework of the Eurosystem and the Financial Markets
1999-12-03 : The single monetary policy: the role of transparency and openness
1999-05-21 : The euro: the birth of a new currency