@BOOK{Rueckemann:1996:Hilfetexte,
  author = {R{\"u}ckemann, C.-P.},
  title = {ZAKOS -- Handbuch vorhandener Hilfetexte},
  publisher = {VME M{\"u}nster, Deutschland},
  edition = {1.},
  note = {100 Seiten},
  keywords = {Handbuch; Hilfetext; ZAKOS;
    Hypertext-System; Kommunikationssystem;
    Informationssystem; portabel; Entwicklung},
  year = {1996},
  language = {german},
  }