The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "policyrelevant" appeared
2014-11-03 : Thomas Philippon's contribution to macro-finance2013-09-24 : 2012 BernĂ¡cer prize award ceremony in honour of Nicholas Bloom
2011-02-03 : Introductory statement to the press conference (with Q&A)