@book{JungBruckQuarg2011,
  author    = {Jung, R{\"u}diger H. and Bruck, J{\"u}rgen and Quarg, Sabine},
  title     = {Allgemeine Managementlehre},
  publisher = {Erich Schmidt},
  address   = {Berlin},
  isbn      = {978-3-503-12908-9},
  pages     = {XXV, 648},
  year      = {2011},
  language  = {de}
}
@book{JungBruckQuarg2013,
  author    = {Jung, R{\"u}diger H. and Bruck, J{\"u}rgen and Quarg, Sabine},
  title     = {Allgemeine Managementlehre},
  publisher = {Schmidt},
  address   = {Berlin},
  isbn      = {978-3-503-144631},
  pages     = {XXVII, 650},
  year      = {2013},
  language  = {de}
}
@book{QuargJungBruck2007,
  author    = {Quarg, Sabine and Jung, R{\"u}diger H. and Bruck, J{\"u}rgen},
  title     = {Allgemeine Managementlehre},
  publisher = {Erich Schmidt},
  address   = {Berlin},
  isbn      = {978-3-503-09790-6},
  pages     = {XVI, 603},
  year      = {2007},
  language  = {de}
}
@book{QuargJungBruck2008,
  author    = {Quarg, Sabine and Jung, R{\"u}diger H. and Bruck, J{\"u}rgen},
  title     = {Allgemeine Managementlehre},
  publisher = {E. Schmidt},
  address   = {Berlin},
  isbn      = {978-3-503-11240-1},
  pages     = {XVIII, 635},
  year      = {2008},
  language  = {de}
}