4Smith, Erin T. Changes in Faculty Reading Behaviors: The Impact of Electronic Journals on the University of Georgia [J]. Journal of Academic Librarianship,2003, (5):162-168. 被引量：1
5Boyce P.,et al. How electronic journals are changing patterns of use [J]. The Serials Librarian, 2004,(46): 121-141. 被引量：1
6Principle of least effort[EB/OL], http://en.wikipedia. org/wiki/Principle_of_least_effort,2011-11-10. 被引量：1
