The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio, Mario Draghi where "essential" appeared
2013-07-04 : Introductory statement to the press conference (with Q&A)2012-10-04 : Introductory statement to the press conference (with Q&A)
2012-02-09 : Introductory statement to the press conference (with Q&A)