1. Armstrong, J., et al. (2004). Report to the South African Risk Equalization Fund Task Group. The International Review Panel, pp. 19–25.
2. Article 5(2) of the Council Directive 2004/113/EC of December 2004. Implementing the principle of equal treatment between men and women in the access to and supply of goods and services. http://eur-lex.europa.eu/LexUriServ/site/en/oj/2004/l_373/l_37320041221en00370043.pdf . Accessed 6 June 2006.
3. Article 13 of the EC Treaty, signed in Amsterdam in October 1997.
4. Buchmueller T.C., Feldstein P.J. (1997) The effect of price on switching among health plans. Journal of Health Economics, 16: 231–247. doi: 10.1016/S0167-6296(96)00531-0
5. Colombo, F., & Tapay, N. (2004). Private health insurance in Ireland: A case study. OECD Health Working Paper, NO.10, DELSA/ELSA/WD/HEA.