European Central Bank 1 October 1998, Opinion of the European Central Bank at the request of Banco de Portugal under Articles 109f (6) and 109l (2) of the Treaty establishing the European Community (hereinafter referred to as the "Treaty"), Article 5.3 of the Statute of the European Monetary Institute and Council Decision of 22 November 1993 (93/717/EC), concerning two drafts of regulatory provisions on (i) monetary policy instruments and procedures and on (ii) minimum reserve requirements (CON/98/47)

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