Board of Governors of the Federal Reserve System (U.S.), 1935-. "Supervisory letter on capital adequacy in risk and complex risk profiles : Release" in Press Releases of the Board of Governors of the Federal Reserve System
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https://fraser.stlouisfed.org/title/9237/item/674681/content/pdf/frsbog_pr_19990701b, accessed on September 9, 2026.