Board of Governors of the Federal Reserve System (U.S.), 1935-. "Capital adequacy guidelines for bank holding companies to treat perpetual debt as primary capital and place limits on amount of perpetual debt, perpetual preferred stock, and mandatory convertible securities as primary capital revised" in Press Releases of the Board of Governors of the Federal Reserve System
(November 4, 1986).
https://fraser.stlouisfed.org/title/9237/item/691069, accessed on May 21, 2026.