@article{
  author = { Bagherzadeh Sohrabi,  Maryam, Mombeini, Hossein, Mehrinejad, Safiyeh},
  title = {Predicting Volatility of Cryptocurrency Returns Using Hidden Markov  & GARCH-Markov Models},
  journal = {Financial Engineering and Portfolio Management},
  year = {2025},
  volume = {16},
  number = {62},
  pages = {187-205},
  doi = {}
}