@article{ Sekihara:2006novel,
  author = {Sekihara, K and Hild, KE and Nagarajan, SS},
  title = {A novel adaptive beamformer for {MEG} source reconstruction effective when large background brain activities exist.},
  journal = { IEEE Trans Biomed Eng},
  year = { 2006},
  volume = {53},
  pages = {1755-1764}
}