The webapp provides for each item the link on ECB's website.
Speeches for : Sirkka Hamalainen where "mandate" appeared
2003-01-14 : How the European Central Bank manages the euro and what is in store for 20032002-11-18 : The role of monetary policy and the central banks in global financial stability
2001-09-14 : The ECB's monetary policy - accountability, transparency and communication