Here is a list of references that may be useful when considering barriers to open access.

• B.C. Bjork on Open Access – are the barriers to change receding?
• 2014 survey of Canadian Researchers’ Publishing Attitudes and Behaviours
• 2014 Taylor and Francis author survey
• 2015 NPG/Palgrave Macmillan author survey
• Registry of Open Access Mandates
• UNESCO Open Access Strategy
• Richard Poynder on The Big Deal: Not Price But Cost