@misc{OPUS4-28464,
  title     = {DGaaE-Nachrichten : Jahrgang 20 (2006), Heft 3},
  booktitle = {DGaaE-Nachrichten},
  volume    = {20},
  number    = {3},
  issn      = {0931-4873},
  type      = {periodicalpart},
  pages     = {97 -- 136},
  year        = {2006},
}