Federal Reserve Bank of Chicago. "Depository Institutions Deregulation Committee, Interest Rate Ceilings on NOW and ATS Accounts from IRA and Keogh Accounts, Circular No. 2831" in Federal Reserve Bank of Chicago Bulletins and Circular Letters (July 9, 1980). https://fraser.stlouisfed.org/title/7180/item/700880, accessed on May 21, 2026.