The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "sufficient" appeared
2015-11-20 : Monetary Policy: Past, Present and Future2015-11-05 : Speech to mark the opening of the academic year at the Università Cattolica del Sacro Cuore
2015-09-23 : President's introductory remarks at the regular ECON hearing
2015-06-15 : Hearing at the European Parliament's Economic and Monetary Affairs Committee
2015-02-24 : Unveiling of the new €20 banknote
2014-11-17 : Introductory remarks at the EP's Economic and Monetary Affairs Committee
2012-12-07 : A central banker's perspective on European economic convergence
2012-06-15 : President's address at the 14th ECB and its Watchers Conference