Regulation (EC) No 1921/2000 of the European Central Bank of 31 August 2000 amending Regulation (EC) No 2818/98 of the European Central Bank on the application of minimum reserves (ECB/1998/15) and amending Regulation (EC) No 2819/98 of the European Central Bank concerning the consolidated balance sheet of the monetary financial institutions sector (ECB/1998/16) (ECB/2000/8)