The webapp provides for each item the link on ECB's website.
Speeches for : Isabel Schnabel where "benefits" appeared
2021-07-10 : Interview with Frankfurter Allgemeine Sonntagszeitung2021-02-26 : Unconventional fiscal and monetary policy at the zero lower bound
2020-12-18 : Q&A on Twitter
2020-06-28 : Necessary, suitable and proportionate