1. Huang, R., Liu, D., Tlili, A., et al.: Guidance on Open Educational Practices During School Closures: Utilizing OER under COVID-19 Pandemic in Line with UNESCO OER Recommendation. Smart Learning Institute of Beijing Normal University, China (2020). https://iite.unesco.org/wp-content/uploads/2020/05/Guidance-on-Open-Educational-Practices-during-School-Closures-English-Version-V1_0.pdf. Last Accessed 3 Mar 2021
2. International Commission on the Futures of Education: Education in a Post-COVID World: Nine Ideas for Public Action. United Nations Educational, Scientific and Cultural Organization (UNESCO), 7, place de Fontenoy, 75352 Paris 07 SP, France (2020)
3. UNESCO: Recommendation on Open Educational Resources (OER). The General Conference of the United Nations Educational, Scientific and Cultural Organization (UNESCO), meeting in Paris from 12 to 27 November 2019. https://unesdoc.unesco.org/ark:/48223/pf0000373755/PDF/373755eng.pdf.multi.page. Last Accessed 3 Mar 2021
4. Wiley, D.: Defining the “Open” in Open Content and Open Educational Resources (2014). https://opencontent.org/definition/. Last Accessed 3 Mar 2021
5. Economides, A.A., Perifanou, M.: Dimensions of openness in MOOCs & OERs. In: EDULEARN2018 Proceedings, 10th International Conference on Education and New Learning Technologies, pp. 3684–3693. 2–4 July, Palma Spain, IATED Digital Library (2018). https://doi.org/10.21125/edulearn.2018.0942