@article{yu2021forecasting,
  author = {Zhenhua Yu and Abdel-Salam G. Abdel-Salam and Ayesha Sohail and Fatima Alam},
  title = {Forecasting the impact of environmental stresses on the frequent waves of COVID19},
  year = {2021},
  journal = {Nonlinear Dynamics},
  volume = {106},
  number = {2},
  pages = {1509--1523},
  publisher = {Springer Science and Business Media LLC},
  doi = {10.1007/s11071-021-06777-6}
}