The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "gap" appeared
2018-10-10 : Monetary policy in the euro area - a brief assessment2017-01-31 : Digital transformation: Europe's integrated market of tomorrow
2016-02-04 : Policy needs, knowns and unknowns in the aftermath of the crisis
2013-10-14 : Interview with Frankfurter Allgemeine Zeitung