@article{11427,
  author = {J. McGowan and E. Clarke},
  title = {Ionization of H(1s) near Threshold},
  year = {1968},
  journal = {Physical Review},
  volume = {167},
  pages = {43-51},
  month = {Jan-03-1968},
  issn = {0031-899X},
  url = {http://link.aps.org/doi/10.1103/PhysRev.167.43},
  doi = {10.1103/PhysRev.167.43},
}