The webapp provides for each item the link on ECB's website.
Speeches for : Tommaso Padoa-Schioppa where "operations" appeared
2003-07-07 : Central banks and financial stability2000-04-29 : Is a euroland banking system already emerging?
1999-09-13 : Payments and the Eurosystem
1999-02-24 : EMU and banking supervision
1998-11-06 : The housing finance markets and EMU