1. Length of service and layoffs in union and nonunion work groups;Abraham;Industrial and Labor Relations Review,1984
2. Bennefield, R., 1998. Health insurance coverage: 1997. Current Population Reports P60-202, US Bureau of the Census.
3. Blostin, A.P., Pfuntner, J.N., 1998. Employee medical care contributions on the rise. Compensation and Working Conditions Spring, 46–51.
4. Bluestone, B., Harrison, B., 1986. The great American jobs machine, Study prepared for the US Joint Economic Committee.
5. The growth of low-wage employment: 1963–86;Bluestone;American Economic Review,1988