2Walter.I. Trattner. From poor law to Welfare StateA Histop of Social Welfare in America [M], 3th edition, New York: the Free Press, 1984, pp.270-271.
3Samuel R, Bagenstos. The Future of Disability Law[J], The Yale Law Journal, 2004, (114).
4Richard V. Burkhanser and Mary C. Daly. U.S. Disability Policy in a Changing Environment [J], Journal of Economic Perspectives, 2002, (16).
5U.S. Access Board: About the U.S. Access Board [EB/OL]. http://www.access-board.gov/, 2012-3 -5.
6Department of Health and Human Services. Department of Health and Human Services HHS Policy for Section 508 Electronic and Information Technology (EIT) [EB/OL]. http:// www.hhs.gov/od/508policy/508jaolicy.hlanl#21 Summaryo fSection508Requirements, 2012-2-9.
7National Library Service for the Blind and Physically Handicapped (NLS). Functions and Responsibilities [EB/OL]. http://www.loc.gov/ nls/functions.html# fun, 2013 - 1-20.
8U.S. Congress. Individuals with disabilities education act amendments of 1997 [R]. Washington, DC: U,S. Government Printing Office, 1997, p.5.
9U.S. Department of Education. 30th Annual Report to Congress on the Implementation of the Individuals with Disabilities Education Act[R]. Washington, DC: U.S. Government Printing Office, 2008, p,3.
10U.S. Department of Education. Twenty- fourth Annual Report to Congress on the Implementation of the Individuals with Disabilities Education Act [R], Washington, DC: U. S. Government Printing Office, 2002, p.9.