Board of Governors of the Federal Reserve System (U.S.), 1935-. "Order of prohibition against Hanspeter Walder : Attachment 1" in Press Releases of the Board of Governors of the Federal Reserve System
(September 15, 2005).
https://fraser.stlouisfed.org/title/9237/item/675344/content/pdf/frsbog_pr_20050915a-1, accessed on August 5, 2026.