8T.D. Webb. The frozen library:a model for 21th century libraries [J]. The Electronic Library,1995,13(1):21～26.
9A.T. Prestamo. Virtualit, y and the Future of the Printed World:Challenges and Implications for Academic Libraries [ J]. Technical Services Quarterly, v13,no 3/4,1996,p39～70.
10Terry Kuny. The Digital Library: Myths and Challenges[J]. IFLA Journal, 1998, v24, no2,107～113.
