7Ball R and Brown P. An Empirical Evaluation of Accounting Income Numbers [ J ]. Journal of Accounting Re- search, 1968,6(2) : 159 - 178.
8Bernard V L and Stober T L. The Nature and Amount of Information in Cash Flows and Accruals [ J ]. The Ac- counting Review, 1994, (10) :624 - 652.
9Ohlson J A. Earnings, Book Values and Dividends in Equity Valuation, Contemporary Accounting Research [J]. 1995,11 (2):661 -687.
10Sloan R G. Do Stock Prices Fully Reflect Information in Accruals and Cash Flows about Future Earnings [ J ]. The Accounting Review. 1996,71 (3) : 289 -315.