@misc{Toennissen2021,
  author    = {Stefan T{\"o}nnissen},
  title     = {Lock-in-Effekt},
  booktitle = {das wirtschaftsstudium wisu},
  number    = {4/21},
  issn      = {0340-3084},
  institution = {ITB},
  type      = {contributiontoperiodical},
  pages     = {384 -- 385},
  year        = {2021},
}