The webapp provides for each item the link on ECB's website.
Speeches for : Isabel Schnabel where "secured" appeared
2023-03-27 : Back to normal? Balance sheet size and interest rate control2020-12-14 : Welcome address
2020-11-23 : Shifting tides in euro area money markets: from the global financial crisis to the COVID-19 pandemic
2020-06-25 : The ECB's policy response to the COVID-19 crisis