@article{apersistentexcitationfreemethodfor,
  title = {A Persistent-Excitation-Free Method for System Disturbance Estimation Using Concurrent Learning},
  author = {Zengjie Zhang and Fangzhou Liu and Tong Liu and Jianbin Qiu and Martin Buss},
  year = {2023},
  eprint = {2304.05693},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2304.05693v2},
}