The webapp provides for each item the link on ECB's website.
Speeches for : Peter Praet where "ads" appeared
2017-06-22 : Interview with Der Spiegel2017-03-15 : The euro area economic outlook and monetary policy
2015-06-30 : The APP impact on the economy and bond markets
2014-12-09 : Current issues in monetary policy
2014-10-10 : Recent monetary policy measures supporting the euro area recovery