The webapp provides for each item the link on ECB's website.
Speeches for : Isabel Schnabel where "conventional" appeared
2021-02-26 : Unconventional fiscal and monetary policy at the zero lower bound2020-12-17 : Climate change and monetary policy
2020-10-10 : The ECB’s independence in times of mounting public debt
2020-02-11 : Narratives about the ECB’s monetary policy – reality or fiction?