1. Abt Associates, 2002. Evaluation of the Nursing Home Casemix and Quality Demonstration. Final Report to Centers for Medicare and Medicaid Services, Baltimote, MD, HCFA Contract No. 500-94-0061.
2. Center for Medicare & Medicaid Services, 2010. Medicare & Medicaid Statistical Supplement. Retrieved from https://www.cms.gov/MedicareMedicaidStatSupp/LT/itemdetail.asp?filterType=dual,keyword&filterValue=2010&filterByDID=0&sortByDID=1&sortOrder=ascending&itemID=CMS1241877&intNumPerPage=10.
3. Market entry and exit in long-term care: 1985–2000;Dalton;Health Care Financing Review,2002
4. Provider behavior under prospective reimbursement. Cost sharing and supply;Ellis;Journal of Health Economics,1986
5. Optimal payment systems for health services;Ellis;Journal of Health Economics,1990