The webapp provides for each item the link on ECB's website.
Speeches for : Sabine Lautenschlager where "viable" appeared
2018-08-05 : Interview with Welt am Sonntag2015-10-11 : Fostering global growth
Speeches for : Sabine Lautenschlager where "viable" appeared
2018-08-05 : Interview with Welt am Sonntag