1Rebecca Schroeder,Tom Wright. Electronic books:a call for effective business models[J].New Library World,2011,(5-6):215-221.
2Ian Hames. Patron-driven acquisition (PDA)and other trends in eBook access[OL].http://www.subscription-agents.org/system/files/Ian% 20Hames% 20ASA% 202011.ppt,2011.
3Judith M.Nixon,Robert S.Freeman,Suzanne M.Ward. Patron-driven acquisitions:an introduction and literature review[J].Collection Management,2010,(3-4):119-124.
4Kristine J.Anderson. Liberal arts books on demand:a decade of patron-driven collection development,Part 1[J].Collection Management,2010,(3-4):125-141.
5Michael Levine-clark. Developing a multiformat demand-driven acquisition model[J].Collection Management,2010,(35):201-207.
6David C.Tyler. Patron-driven purchase on demand programs for printed books and similar materials:a chronological review and summary of findings[J].Library Philosophy and Practice,2011.108-127.
7Maureen Weicher,Tian Xiao Zhang. Unbundling the big deal with patron driven acquisition of eJournals[OL].http://www.buw.uw.edu.pl/images/mapa/IFLA_2011/papers/164-weicher-en.pdf,2011.