The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "influence" appeared
2018-11-27 : Climate change and central banking2017-09-04 : Aligning accountability with sovereignty in the European Union: the ECB’s experience
2017-03-30 : Central bank independence revisited
2016-11-17 : The causes of monetary policy measures and their impact - a review
2014-05-31 : Law, money and market: the legal dimension of monetary policy
2013-12-09 : Euro area monetary policy: where we stand