@article{texthinftytrackingcontrolviavariable,
  title = {$\text{H}_{\infty}$ Tracking Control via Variable Gain Gradient Descent-Based Integral Reinforcement Learning for Unknown Continuous Time Nonlinear System},
  year = {2020},
  eprint = {2001.07355},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/2001.07355v1},
}