Bibliography (8):

1. Proximal Policy Optimization Algorithms

2. https://github.com/ml-jku/rudder

3. https://www.youtube.com/playlist?list=PLDfrC-Vpg-CzVTqSjxVeLQZy3f7iv9vyY

4. Wikipedia Bibliography:

   1. Reinforcement learning

   2. Markov decision process

   3. Variance

   4. Monte Carlo method

   5. Monte Carlo tree search