@article{Chun2014,
  author    = {Hans-Ulrich Chun},
  title     = {Ionisierungspotential und Autoionisationszust{\"a}nde von CH4 im ultraweichen R{\"o}ntgen-Gebiet},
  journal   = {Zeitschrift f{\"u}r Naturforschung, A},
  volume    = {23},
  number    = {9},
  pages     = {1415 -- 1416},
  doi       = {10.1515/zna-1968-0934},
  year      = {2014},
}