@article{twostagechannelestimationforhybridris,
  title = {Two-Stage Channel Estimation for Hybrid RIS Assisted MIMO Systems},
  author = {Rafaela Schroeder and Jiguang He and Glauber Brante and Markku Juntti},
  year = {2021},
  eprint = {2107.07193},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2107.07193v1},
}