8ARL's Office of Scholarly Communication's position paper. Framing the issue: Open Access.[2005-3-12]. http://www.arl.org/scomm/open_access/framing.html.
9Martin Frank. A Not-for-Profit Publisher's Perspective on Open Access. Serials Review, 2004, 30: 281-287.
10David Goodman. The Criteria for Open Access. Serials Review, 2004,30:258 - 270.