Amit Kumar, “Human Rights and Social Welfare,” Dominant Publishers and Distributors Publications, New Delhi, pp. 203-221, 2012.
Bertrand G. Ramcharan, "Contemporary Human Rights Ideas," London and New York: Routledge, pp. 34-36, 2008 Bogdan Aurescu, The New Sovereignty, ALL Beck Publishing House, 2003, p. 114.
Case 53/81, D.M.Levin vs Staatssecretaris van Justice.