Resources and references

During the implementation of the algorithm, I used several helpful resources, in which I have learned the concepts and math behind 
the algorithm, and others I used as a direct reference to create the documentation sections in QAOA.py and QAOA_Doc.ipynb.


Here is the list:

A QAOA, E. Farhi and J. Goldstone:                https://arxiv.org/pdf/1411.4028.pdf
VQE explained, Michał Stęchły's blog:             https://www.mustythoughts.com/variational-quantum-eigensolver-explained
QAOA explained, Michał Stęchły's blog:            https://www.mustythoughts.com/quantum-approximate-optimization-algorithm-explained
Solving COP using QAOA, Qiskit textbook:          https://qiskit.org/textbook/ch-applications/qaoa.html
Maximum cut, Wikipedia:                           https://en.wikipedia.org/wiki/Maximum_cut
Graphs and QAOA, Jack Ceroni:                     https://lucaman99.github.io/new_blog/2020/mar16.html
Introduction to Graph Theory, R. J. Trudeau:      https://a.co/68VluPF