@misc{indiciae75b18f4309be,
  title = {Spatial filtering in multichannel magnetoencephalography.},
  author = {P Nicolas and M Kouwenhoven},
  year = {1989},
  doi = {10.1016/0141-5425(89)90170-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/2927102/},
  note = {Source identifier: 2927102}
}