1. der Klugt, G.V.: Most people still use the same password for multiple accounts. Most people still use the same password for multiple accounts, 3 March 2022. https://www.techzine.eu/news/security/74094/most-people-still-use-the-same-password-for-multiple-accounts/. Accessed 10 Nov 2022
2. Brown, S.: The Difference Between SAML vs OIDC. StrongDM, 23 September 2022. https://www.strongdm.com/blog/oidc-vs-saml. Accessed 10 Oct 2022
3. BILDUNGSLOGIN. (n.d.). BILDUNGSLOGIN. BILDUNGSLOGIN. https://info.bildungslogin.de/dienste/myportalbilo. Accessed 10 Oct 2022
4. Krauss, C., Hauswirth, M.: Interoperable Education Infrastructures: A Middleware that Brings Together Adaptive, Social and Virtual Learning Technologies. ERCIM News, 20 December 2019. https://ercim-news.ercim.eu/en120/special/interoperable-education-infrastructures-a-middleware-that-brings-together-adaptive-social-and-virtual-learning-technologies. Accessed 10 Nov 2022
5. Santos-Hermosa, G.: The role of institutional repositories in higher education: purpose and level of openness. In: Otto, D., Scharnberg, G., Kerres, M., Zawacki-Richter, O. (eds.) Distributed Learning Ecosystems. Springer VS, Wiesbaden (2023). https://doi.org/10.1007/978-3-658-38703-7_4