1[5]Brickley,James S.Schallheim.Lifting the Lid on Closedend Investment Companies:A Case of Abnormal Returns[J].Journal of Financial and Quantitative Analysis,1985,20.
2[6]Chay,Jong-Bom.The Pricing of Colsed-End Funds:Discounts and Managerial Performance[D].State Unirersity of New York,1992.