Heller, H. Robert (Heinz Robert), 1940- and Board of Governors of the Federal Reserve System (U.S.), 1935- "Central Bank Cooperation." 9th International Monetary and Trade Conference of the Global Interdependence Center, Philadelphia, Pennsylvania, December 5, 1988, https://fraser.stlouisfed.org/title/923/item/35812, accessed on September 5, 2024.