@article{10903,
  author = {John Hall and R. Schumacher},
  title = {Electron Spin Resonance of Hydrogen Atoms in CaF2},
  year = {1962},
  journal = {Physical Review},
  volume = {127},
  pages = {1892-1912},
  month = {Jan-09-1962},
  issn = {0031-899X},
  doi = {10.1103/PhysRev.127.1892},
}