@article{KlenkPieper2013,
  author    = {Tanja Klenk and Jonas Pieper},
  title     = {Accountability in a privatized welfare state the case of the german hospital market},
  journal   = {Administration \& society},
  volume    = {45},
  number    = {3},
  pages     = {326 -- 356},
  doi       = {10.1177/0095399712451890},
  year      = {2013},
}