1. https://en.wikipedia.org/wiki/Turing_machine#:~:text=A%20Turing%20machine%20is%20a, algorithm's%20logic%20can%20be%20constructed. Last visited 11 June 2020.
2. https://en.wikipedia.org/wiki/Group_(mathematics)#:~:text=In%20mathematics%2C%20a %20group%20is,%2C%20associativity%2C%20identity%20and%20invertibility.&text= Groups%20share%20a%20fundamental%20kinship%20with%20the%20notion%20of%20 symmetry. Last visited 11 June 2020.
3. https://en.wikipedia.org/wiki/Field_(mathematics) Last visited 11 June 2020.
4. https://study.com/academy/lesson/field-theory-definition-examples.html Last visited 11 June 2020.
5. https://blog.cloudflare.com/a-relatively-easy-to-understand-primer-on-elliptic-curve-cryptography/ Last visited 11 June 2020.