The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "months" appeared
2017-12-29 : Interview with Börsen-Zeitung2017-07-25 : The ECB’s monetary policy stance
2017-07-04 : Loan-level data transparency: achievements and future prospects
2014-05-14 : Keynote speech at 70th Banking Conference of German Cooperative Banks
2013-10-24 : Interview with Het Financieele Dagblad