The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "behaviour" appeared
2019-03-22 : Remarks at the ‘Challenges in Understanding the Monetary Transmission Mechanism’ conference2017-10-09 : Economic Policy and the Need for Humility
2017-09-01 : The role of cash: Customer retention and tie to the citizen
2015-06-04 : Getting the balance right: innovation, trust and regulation in retail payments