1. Citizens United v. Federal Election Commission, U.S. (2010), p. 76
2. Abend, L. (2008) In Spain, human rights for apes. Time 18 July
3. Standing Bear is a Person: the True Story of a Native American's Quest for Justice;Dando-Collins,2004
4. Kinds of minds;Dennett,1996
5. The Illusion of Conscious Will;Wegner,2002