The webapp provides for each item the link on ECB's website.
Speeches for : Frank Elderson where "underlying" appeared
2023-03-30 : Interview with El País2022-11-15 : Maintaining prudence when navigating unexpected tides and firming currents
2022-06-11 : Supervising banks’ governance: structure, behaviour and culture
2021-03-17 : Q&A on Twitter
2021-02-13 : Greening monetary policy