1. Branscombe, M. (2015, July 29). Open source: Free as in speech, beer – or puppy? ZDNet. https://www.zdnet.com/article/open-source-free-as-in-speech-beer-or-puppy/
2. Ex Libris. (2020, July 22). List of COVID-19 and Temporarily Free Resources. Ex Libris Knowledge Center. https://knowledge.exlibrisgroup.com/Summon/Content_Corner/Supporting_Resources/List_of_COVID-19_and_Temporarily_Free_Resources
3. Galvan, A. S. (2020, April 10). Work notes: “Free” for COVID-19 and resource management. Scarlet Fixes Things. https://asgalvan.com/2020/04/10/work-notes-free-for-covid-19-and-resource-management/
4. Hubler, S. (2020, May 12). Fearing a second wave, Cal State will keep classes online in the fall. New York Times. https://www.nytimes.com/2020/05/12/us/cal-state-online-classes.html
5. Open Access Belgium. (n.d.). Glossary. Open Access Belgium. https://openaccess.be/support/glossary/.