@book{vonSpiegel1993,
  author    = {von Spiegel, Hiltrud},
  title     = {Aus Erfahrung lernen},
  edition   = {1, Aufl.},
  publisher = {Votum},
  address   = {M{\"u}nster},
  isbn      = {3-926549-80-7},
  pages     = {255 S.},
  year      = {1993},
  language  = {de}
}