The webapp provides for each item the link on ECB's website.
Speeches for : Tommaso Padoa-Schioppa where "challenges" appeared
2004-11-03 : How to deal with emerging pan-European financial institutions?2004-09-28 : The European Union and the Russian Federation: Challenges of market building
2004-06-23 : Challenges of financial integration in the post-FSAP period
2004-02-02 : Exchange rate issues relating to the acceding countries
2002-11-04 : Trajectories towards the euro and the role of ERM II
2002-03-22 : Accession Countries on the Way to the Euro: A Central Banker's View,
1999-04-15 : Eurosystem: new challenges for old missions