The webapp provides for each item the link on ECB's website.
Speeches for : Fabio Panetta where "bitcoin" appeared
2023-06-23 : Paradise lost? How crypto failed to deliver on its promises and what to do about it2022-12-07 : Crypto dominos: the bursting crypto bubbles and the destiny of digital finance
2022-04-25 : For a few cryptos more: the Wild West of crypto finance