8Marty Butler,Andrew J Leone,Michael Willenborg.An empirical analysis of auditor reporting and its association with abnormal accruals[J].Joumal of Accounting and Economics,2004,37(2): 139-165.
9Wemer Antweiler, Murray Z Frank.Is all that talk just noise? the information content of internet stock message boards[J].Journal of Finance,2004,59(3): 1259-1295.
