United States. Department of the Treasury. "Results Of Treasury's Auction Of 26-Week Bills, May 10, 1999," in United States. Department of the Treasury. "Volume 376," Press Releases of the United States Department of the Treasury (May 3, 1999 - June 30, 1999) : 60-61. https://fraser.stlouisfed.org/title/6111/item/587219/toc/573289 , accessed on May 18, 2024.