David, P. A. Understanding the emergence of 'open science' institutions: Functionalist economics in historical context. Industrial and Corporate Change. 2004, 13 (4): 571–589. doi:10.1093/icc/dth023.
Rocchini, D.; Neteler, M. Let the four freedoms paradigm apply to ecology. Trends in Ecology & Evolution. 2012, 27 (6): 310–311. doi:10.1016/j.tree.2012.03.009.
David, Paul A. Can "Open Science" be Protected from the Evolving Regime of IPR Protections?. Journal of Institutional and Theoretical Economics (Mohr Siebeck GmbH & Co. KG). March 2004, 160 (1). JSTOR 40752435.