The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "confirm" appeared
2019-03-27 : Necessity, proportionality and probity – central bank independence in unconventional times2017-07-25 : The ECB’s monetary policy stance
2016-02-16 : Oral hearing of the Federal Constitutional Court 16 February 2016 in the OMT proceedings