@article{LuchtMotzer2020,
  author    = {Lutz G. Lucht and Renate Motzer},
  title     = {Permutative Zahlen},
  journal   = {Mathematische Semesterberichte},
  volume    = {67},
  number    = {1},
  pages     = {43 -- 55},
  doi       = {10.1007/s00591-019-00265-0},
  year      = {2020},
}