@book{HartwigMerchel2000,
  author    = {Luise Hartwig and Joachim Merchel},
  title     = {Parteilichkeit in der sozialen Arbeit},
  edition   = {1. Aufl.},
  volume    = {4},
  isbn      = {3-89325-822-1},
  year      = {2000},
}