Board of Governors of the Federal Reserve System (U.S.), 1935-. "Revised list of OTC stocks subject to margin regulations and list of foreign equity securities meeting Regulation T margin criteria : Attachment 1" in Press Releases of the Board of Governors of the Federal Reserve System
(January 26, 1998).
https://fraser.stlouisfed.org/title/9237/item/674575/content/pdf/frsbog_pr_19980126-1, accessed on March 16, 2026.