1. Advisory Commission on Intergovernmental Relations (1985), “The states and distressed communities: the final report”, Advisory Commission on Intergovernmental Relations, Washington, DC.
2. Financial ratios, discriminant analysis, and the prediction of corporate bankruptcy;Journal of Finance,1968
3. The detection of earnings manipulation;Financial Analysts Journal,1999
4. Brookings Institute (2003), “Back to prosperity: a competitive agenda for renewing Pennsylvania”, Brookings Institute, Washington, DC.