@misc{Fohrmann2021,
  author    = {Oliver Fohrmann},
  title     = {Das effiziente Ich},
  booktitle = {Urania Berlin e.V. Jahresmagazin},
  volume    = {2019/2020},
  institution = {Wirtschaft (MSB)},
  type      = {contributiontoperiodical},
  pages     = {10 -- 13},
  year        = {2021},
}