The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "portfolio" appeared
2016-10-11 : Speaking points for an event organised by MNI Connect2014-10-17 : Monetary policy and economic inequality
2013-11-18 : On the road to a banking union: the way forward from the ECB's perspective
2013-10-24 : Interview with Het Financieele Dagblad