The webapp provides for each item the link on ECB's website.
Speeches for : Otmar Issing where "spread" appeared
2002-10-25 : Second ECB Central Banking Conference 24-25 October 2002, Frankfurt am MainSpeeches for : Otmar Issing where "spread" appeared
2002-10-25 : Second ECB Central Banking Conference 24-25 October 2002, Frankfurt am Main