The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "volatility" appeared
2019-05-29 : Back to stable2018-05-14 : Virtual currencies ante portas
2017-01-26 : Ructions in the repo market - monetary easing or regulatory squeezing?
2016-02-02 : Interview with Wall Street Journal
2013-06-13 : Monetary policy in an environment of low growth and interest rates