An "elastic" earliest eligibility age for Social Security
Zhivan, Natalia A., Steven A. Sass, Margarita Sapozhnikov, and Kelly Haverstick. “An "elastic" earliest eligibility age for Social Security”. Issue in Brief 8-2, Chestnut Hill, Mass.: Center for Retirement Research at Boston College, February 2008. http://hdl.handle.net/2345/bc-ir:104317.