@incollection{s-z-02,
  title = {{Zwischensysteme}},
  author = {Jochen Schiller},
  booktitle = {Lehr- und {\"U}bungsbuch Telematik},
  publisher = {Fachbuchverlag Leipzig},
  year = {2002},
  address = {Leipzig},
  edition = {2. neu bearbeitete Auflage},
  editor = {Gerhard Kr{\"u}ger and Dietrich Reschke},
  pages = {145--172},
}