2La Porta, Rafael, Florencio Lopez - de - Silanes and Andrei Shleifer. Corporate Ownership around the World [J]. Journal of Finance, 1999,No. 54, pp. 471-517.
3Claessens Stijn, Simeon Djankov & Larry H. P. L. The Separation of Ownership and Control in East Asian Corporations [J]. Journal of Financial Economics, 2000, No. 58, pp. 81- 112.
4Riyanto E. & Toolsema A. Tunneling and Popping: a Justification for Pyramidal Ownership [R]. Working Paper, 2005.