@article{BalzvonKeitz2004,
  author    = {Balz, Ulrich and von Keitz, Isabel},
  title     = {Schadensbegrenzung f{\"u}r Profis - Risiken steuern statt verwalten},
  series = {Wirtschaftsspiegel},
  journal   = {Wirtschaftsspiegel},
  number    = {8},
  pages     = {40 -- 41},
  year      = {2004},
  language  = {de}
}
@book{vonKeitz2003,
  author    = {von Keitz, Isabel},
  title     = {Praxis der IASB-Rechnungslegung},
  publisher = {Sch{\"a}ffer-Poeschel},
  address   = {Stuttgart},
  isbn      = {3-7910-2062-5},
  pages     = {XXIV, 287 S. : graph. Darst.},
  year      = {2003},
  language  = {de}
}
@book{vonKeitz1997,
  author    = {von Keitz, Isabel},
  title     = {Immaterielle G{\"u}ter in der internationalen Rechnungslegung},
  edition   = {1. Aufl.},
  publisher = {IDW-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-8021-0707-1},
  pages     = {XXV, 300 S. : graph. Darst.},
  year      = {1997},
  language  = {de}
}