"Open access (OA) literature is digital, online, free or charge, and free of most copyright and licensing restrictions and focuses on OA to scholarly research and scholarship."
Open Access Directory. (2014, May 1). New to open access?. Retrieved from http://oad.simmons.edu/oadwiki/New_to_Open_Access%3F
Zuniga, H. (2014). The role of a digital repository in a library-managed open access fund program. D-Lib Magazine, 20(9/10). http://dx.doi.org/10.1045/september2014-zuniga