1. Sundhedsministeriet. The Danish Health Care Sector. København 1999. Also available at www.sum.dk/publikationer.
2. Health care and cost containment in Denmark;Christiansen,1999
3. Equity in the finance of health care. Some further international comparisons;Wagstaff;Journal of Health Economics,1999
4. Lighed med hensyn til finansiering af sundhedsydelser og fordelingseffekt af øget brugerbetaling;Christiansen;Samfundsøkonomen,1999
5. ‘danmark’: www.sygeforsikring.dk (in Danish).