@ARTICLE{9740229,
  author={Xie, Xiangpeng and Xu, Chang and Gu, Zhou},
  journal={IEEE Transactions on Circuits and Systems II: Express Briefs}, 
  title={Further Studies on State Estimation of Discrete-Time Nonlinear Circuits Based on a Switching-Type Multi-Instant Fuzzy Observer}, 
  year={2022},
  volume={69},
  number={8},
  pages={3505-3509},
  doi={10.1109/TCSII.2022.3161686}}

Xiangpeng Xie, Chang Xu and Zhou Gu, Further Studies on State Estimation of Discrete-Time Nonlinear Circuits Based on a Switching-Type Multi-Instant Fuzzy Observer, IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 69, no. 8, pp. 3505-3509, Aug. 2022.