@article{JohnBontrup2017,
  author    = {Eva-Maria John and Heinz-Josef Bontrup},
  title     = {Wettbewerbsimperativ, Marktmacht und die Folgen},
  journal   = {WSI-Mitteilungen},
  volume    = {55},
  number    = {11},
  pages     = {642 -- 648},
  year      = {2017},
}