The webapp provides for each item the link on ECB's website.
Speeches for : Tommaso Padoa-Schioppa where "criteria" appeared
2004-02-02 : Exchange rate issues relating to the acceding countries2002-03-22 : Accession Countries on the Way to the Euro: A Central Banker's View,
2000-12-21 : High-level seminar with the EU-candidate countries
1998-09-03 : On the eve of the euro