United States. General Accounting Office and United States. Government Accountability Office. "Influenza Pandemic : Key Securities Market Participants Are Making Progress, but Agencies Could Do More to Address Potential Internet Congestion and Encourage Readiness, Report to Congressional Requesters" in GAO Reports & Testimonies (October 26, 2009). https://fraser.stlouisfed.org/title/6136/item/622227, accessed on March 21, 2025.