United States. Bureau of the Budget
and United States. Office of Management and Budget. "Fiscal Year 2002 : National Science Foundation,"
Budget of the United States Government - Appendix
(April 9, 2001).
https://fraser.stlouisfed.org/title/233/item/5756/content/pdf/BUDGET-2002-APP-1-27, accessed on March 16, 2026.