@article{Himpel2014,
  author    = {Kurt Himpel},
  title     = {Ein Beitrag zum Eiszeitproblem},
  journal   = {Zeitschrift f{\"u}r Naturforschung, A},
  volume    = {2},
  number    = {7},
  pages     = {419 -- 427},
  doi       = {10.1515/zna-1947-0711},
  year      = {2014},
}