The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "safeguards" appeared
2020-11-02 : Legal aspects of the ECB’s response to the coronavirus (COVID-19) pandemic – an exclusive but narrow competence2020-06-25 : The World Economy Transformed
2017-09-01 : The role of cash: Customer retention and tie to the citizen
2016-04-09 : Scope and Limits of Monetary Policy
2013-02-27 : The European banking union - first steps on a long march