1Tammy R Siebenberg, etal. Print Versus Electronic Journal Use, in Three. Sci/Tech Disciplines: What's Going on Here?[ J]. College & Rgsearch Libraries, 2004, 65 (5) :4M27 - 438.
2Margaret Stieg Dalton, Laurie Charnigo. Historians and Their Information Sources [ J ]. College & Research Libraries, 2004, 65 (5): 400-420.
3Linda G Ackerson, Karen Chapman. Identifying the Role of Multidisciplinary Journals in Scientific Research [ J ]. College & Research Libraries, 2003, 64 (6): 468- 478.