Altig, David, 1956-. "Economic Acitivity and Labor Markets : Revisions to Real GDP," in Federal Reserve Bank of Cleveland. "Economic Trends - January 2007," Economic Trends (Federal Reserve Bank of Cleveland) (January 2007) : 19-20. https://fraser.stlouisfed.org/title/3952/item/493039/toc/504888 , accessed on April 19, 2024.