Bopp, Karl R., 1906-1979 and Federal Reserve Bank of Philadelphia "Inflation -- A Threat to Retirement Programs." 36th Annual Convention of the National Council on Teacher Retirement of the National Education Association, Sheraton-Ritz Carlton, Atlantic City, N.J., February 13, 1959, https://fraser.stlouisfed.org/title/1013/item/1200, accessed on September 25, 2024.