1. Valimised, Available: https://www.valimised.ee/et (accessed 10 May 2020).
2. E-voting is (too) secure, Available: https://www.ria.ee/en/news/e-voting-too-secure.html (accessed 10 May 2020).
3. Security analysis of the Estonian internet voting system;Springall,2014
4. Blockchain based e-voting recording system design;Hanifatunnisa,2017
5. Large-scale election based on blockchain;Wang;Procedia Comput. Sci.,2018