@article{
  author = {Hatef Vahid, Majid, Saleh Ardestani, Abbas},
  title = {Impact of macroeconomic variables on unobserved systematic risk using Kalman filter},
  journal = {Journal of Investment Knowledge},
  year = {2024},
  volume = {13},
  issue = {51},
  pages = {279-300},
  doi = {},
  url = {https://sanad.iau.ir/fa/Article/843755}
}