Board of Governors of the Federal Reserve System (U.S.), 1935-. "Revised list of OTC stocks and foreign equity securities meeting Regulation T margin criteria : Attachment 5" in Press Releases of the Board of Governors of the Federal Reserve System
(July 24, 1998).
https://fraser.stlouisfed.org/title/9237/item/674606/content/pdf/frsbog_pr_19980724-5, accessed on March 5, 2026.