The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "core" appeared
2019-02-26 : Lending and payment systems in upheaval: the fintech challenge2018-02-14 : The role of euro banknotes as legal tender
2015-09-10 : Medium to long-term priorities of Capital Markets Union (CMU) for the ECB/Eurosystem
2015-06-11 : Capital Markets Union: Optimising investment and financing conditions, increasing resilience