The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "energy" appeared
2018-11-27 : Climate change and central banking2018-10-10 : Monetary policy in the euro area - a brief assessment
2018-03-14 : Interview with Luxemburger Wort
2017-07-25 : The ECB’s monetary policy stance
2017-02-10 : Behaving responsibly in a low interest rate environment: A central banker's perspective
2016-10-12 : The ECB and the Federal Reserve - an ocean apart?