1. “Bipartisan Campaign Reform Act of 2002.” 2002. Campaign Finance Materials, Stanford Law School. Accessed on May 30, 2008. Available online at http://www.law.stanford.edu/publications/projects/campaignfinance/collection/107.155.pdf
2. Cantor, Joseph E. 1998. “Political Spending by Organized Labor: Background and Current Issues.” Congressional Research Service, Library of Congress 96-484 GOV (February 18). Accessed on May 30, 2008. Available online at http://digital.library.unt.edu/govdocs/crs/permalink/meta-crs-736:1