The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "online" appeared
2019-03-22 : Remarks at the ‘Challenges in Understanding the Monetary Transmission Mechanism’ conference2018-10-03 : The future started yesterday
2018-02-22 : Reaping the benefits of payment services in a new regulatory environment
2017-07-24 : Central banking in times of technological progress
2015-10-26 : Challenges of retail payments innovation