@book{K{\"o}hler2009,
  author    = {K{\"o}hler, Norma},
  title     = {Biografische Theaterarbeit zwischen kollektiver und individueller Darstellung},
  publisher = {Kopaed},
  address   = {M{\"u}nchen},
  isbn      = {978-3-86736-316-7},
  pages     = {215},
  year      = {2009},
  language  = {de}
}
@book{StingK{\"o}hlerKhuon2010,
  author    = {Sting, Wolfgang and K{\"o}hler, Norma and Khuon, Ulrich},
  title     = {Irritation und Vermittlung},
  editor    = {Sting, Wolfgang and K{\"o}hler, Norma and Hoffmann, Klaus},
  publisher = {LIT-Verlag},
  address   = {Berlin},
  isbn      = {978-3-643-10065-8},
  pages     = {II, 229},
  year      = {2010},
  language  = {de}
}