1. Allen, C. (2016). The path to self-sovereign identity. http://www.lifewithalacrity.com/2016/04/the-path-to-self-soverereign-identity.html
2. Alpár, G., van den Broek, F., Hampiholi, B., Jacobs, B., Lueks, W., & Ringers, S. (2017). IRMA : practical decentralized and privacy-friendly identity management using smartphones. https://www.semanticscholar.org/paper/IRMA-%3A-practical-%2C-decentralized-and-identity-using-Alp%C3%A1r-Broek/4bfefe33c5e143bb1cd4f3aca96539cb7289483b
3. Association of German Banks. (2021). Digital identities – steps on the path to an ID ecosystem. https://en.bankenverband.de/newsroom/comments/digital-identities-steps-path-id-ecosystem/#2
4. Avellaneda, O., Bachmann, A., Barbir, A., Brenan, J., Dingle, P., Duffy, K. H., et al. (2019). Decentralized identity: where did it come from and where is it going? IEEE Communications Standards Magazine, 3(4), 10–13. https://doi.org/10.1109/MCOMSTD.2019.9031542
5. Aventus. (2020). Aventus white paper: the ultimate blockchain guide. https://www.aventus.io/wp-content/uploads/2020/03/The-Aventus-Whitepaper-2020-.pdf