Keeley, Michael C. "Cyclical Unemployment and Employment : Effects of Labor Force Entry and Exit," in Federal Reserve Bank of San Francisco. "Summer 1984, Number 3," Economic Review (Federal Reserve Bank of San Francisco) (Summer 1984) : 5-25. https://fraser.stlouisfed.org/title/869/item/520376/toc/514165 , accessed on April 19, 2024.