1. Sandøe P, Christiansen S (2008) Ethics of animal use. Blackwell, Oxford, UK
2. Narveson J (1983) Animal rights revisited. In: Miller HB, Williams WH (eds) Ethics and animals. Humana, Clifton, NJ
3. Singer P (1989) All animals are equal. In: Regan T, Singer P (eds) Animal rights and human obligations. Prentice Hall, Englewood Cliffs, NJ, pp 73–86
4. Regan T (1988) The case for animal rights. Routledge, London
5. Russell WMS, Burch RL (2008) The principles of humane experimental technique 1959 (Accessed June 9, 2008 at
http://altweb.jhsph.edu/publications/humane_exp/het-toc.htm
)