The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "complement" appeared
2020-10-19 : The ECB’s monetary policy amid the pandemic2016-09-26 : The next steps in the evolution of the Eurosystem's market infrastructure
2015-09-10 : Medium to long-term priorities of Capital Markets Union (CMU) for the ECB/Eurosystem
2013-03-04 : Financial stability policies in central banks