@article{Luhmann2019,
  author    = {Luhmann, Hans-Jochen},
  title     = {Der gekaperte Tanker von Gibraltar und der Geist des {"}mare liberum{"}},
  journal   = {Welt-Trends},
  volume    = {27},
  number    = {155},
  pages     = {4 -- 9},
  year      = {2019},
  language  = {de}
}