The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "complex" appeared
2020-11-21 : Interview with Börsen-Zeitung2019-11-25 : From Basel III to European banking regulation
2019-04-06 : Competitiveness of Europe and European Financial Markets
2017-10-09 : Economic Policy and the Need for Humility