@misc{OPUS4-28419,
  title     = {DGaaE-Nachrichten : Jahrgang 7 (1993), Heft 2},
  booktitle = {DGaaE-Nachrichten},
  volume    = {7},
  number    = {2},
  issn      = {0931-4873},
  type      = {periodicalpart},
  pages     = {25 -- 72},
  year        = {1993},
}