@incollection{Krueger2020,
  author    = {Hans-Peter Kr{\"u}ger},
  title     = {Closed environment and open world},
  booktitle = {Jakob von Uexk{\"u}ll and philosophy: life, environments, anthropology},
  series    = {On the significance of Uexkull's biology for Helmuth Plessner's natural philosophy},
  isbn      = {978-0-429-27909-6},
  doi       = {10.4324/9780429279096},
  year      = {2020},
}