@article{Lippert2014,
  author    = {Werner Lippert},
  title     = {Bemerkungen zur elektronenmikroskopischen Dickenmessung von Kohleschichten},
  journal   = {Zeitschrift f{\"u}r Naturforschung, B},
  volume    = {17},
  number    = {5},
  pages     = {335 -- 339},
  doi       = {10.1515/znb-1962-0510},
  year      = {2014},
}