@book{HentzeMuellerSchlicksupp1990,
  author    = {Henner Hentze and Klaus-Dieter M{\"u}ller and Helmut Schlicksupp},
  title     = {Praxis der Managementtechniken},
  edition   = {1. Auf.},
  isbn      = {3-446-15046-3},
  year      = {1990},
}