The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "new" appeared
2017-11-24 : Ricardo Reis’ contribution to Macroeconomics2017-09-25 : Developing models for policy analysis in central banks
2011-09-22 : Laudatio for Professor Kenneth Rogoff, recipient of the 2011 Deutsche Bank Prize in Financial Economics