@ARTICLE{A28,
  author    = {Z. {Bouyahia} and H. {Haddad} and S. {Derrode} and W. {Pieczynski}},
  journal={IEEE Access}, 
  title={Toward a Cost-Effective Motorway Traffic State Estimation From Sparse Speed and GPS Data}, 
  year={2021},
  volume={9},
  number={},
  pages={44631-44646},
  doi={10.1109/ACCESS.2021.3066422}
}