@article{3,
  author = {He Zhang and Jun Liu},
  title = {Event-Triggered Fuzzy Flight Control of a Two-Degree-of-Freedom Helicopter System},
  year = {2021},
  journal = {IEEE Transactions on Fuzzy Systems},
  volume = {29},
  doi = {https://doi.org/10.1109/TFUZZ.2020.3009755},
}