@misc{Bontrup2018,
  author    = {Heinz-Josef Bontrup},
  title     = {Produktivit{\"a}tszuwachs – f{\"u}r wen?},
  booktitle = {Ossietzky. Zweiwochenschrift f{\"u}r Politik, Kultur, Wirtschaft},
  volume    = {14},
  number    = {13},
  url       = {https://www.sopos.org/aufsaetze/4e05ae02031dd/1.phtml.html},
  institution = {Wirtschaftsrecht},
  type      = {contributiontoperiodical},
  pages     = {491ff.},
  year        = {2018},
}