4James K. Glassman, "America's Recipriocal Stock Portfolio----How U. S. Invest in 'Foreign' Companies That Invest in The U. S.", sponsored by the Organization for International Investment and Citibank Depositary Receipt Services, 2001.
5Karl V. Lins, Deon Strickland & Marc Zenner, "Do non-U. S. firms issue equity on U. S. stock exchanges to relax capital constraints?" December; 2000.
6Paul B. Pieper & Robert C. Vogel, "Stock market integration in Latin America", consulting assistance for economic reform paper, directed by Harvard Institute for International Development (HIID), october 1997.
7London Stock Exchange, "Listing depositary receipts-the summary of the UK listing authority", April 2000.
