topic: pensions
Helvering v. Davis 301 U.S. 619 (1937)
City of Los Angeles Department of Water and Power v. Manhart 435 U.S. 702 (1978)
Allied Structural Steel Co. v. Spannaus 438 U.S. 234 (1978)
United States. Railroad Retirement Board v. Fritz 449 U.S. 166 (1980)