@book{Ritter2009,
  author    = {Hans Martin Ritter},
  title     = {ZwischenR{\"a}ume: Theater - Sprache - Musik},
  publisher = {Schibri-Verlag},
  address   = {Berlin},
  isbn      = {978-3-86863-028-2},
  pages     = {238},
  year      = {2009},
  language  = {de}
}