The webapp provides for each item the link on ECB's website.
Speeches for : Sabine Lautenschlager where "purchase" appeared
2019-08-30 : Interview with Market News2019-04-01 : Interview with Der Standard
2018-12-30 : Interview with Deutschlandfunk
2018-11-26 : Interview with Agence France-Presse
2018-08-05 : Interview with Welt am Sonntag
2018-05-29 : Monetary policy - end of history?
2017-10-09 : Between low interest rates and bond purchases - has European monetary policy reached a dead end?
2017-09-15 : Monetary policy – what’s next?
2017-02-19 : Interview with Deutschlandfunk
2016-09-30 : Interview with Börsen-Zeitung
2016-09-13 : Monetary policy in uncertain times - the ECB and the crisis
2015-11-23 : Stormy times - how is the ECB handling them?
2015-04-02 : Interview with Wirtschaftswoche
2014-11-29 : How innovative should central banks be?
2014-09-07 : Interview with Deutschlandfunk
2014-07-06 : Interview with Frankfurter Allgemeine Sonntagszeitung: Savers are not being dispossessed