@misc{Bontrup2017,
  author    = {Heinz-Josef Bontrup},
  title     = {Br{\"o}ckelnde Marktmacht der \"Big-4\" in der Elektrizit{\"a}tswirtschaft},
  booktitle = {Z. Zeitschrift Marxistische Erneuerung},
  volume    = {27},
  number    = {108},
  institution = {Wirtschaftsrecht},
  type      = {contributiontoperiodical},
  pages     = {82ff.},
  year        = {2017},
}