@unpublished{KlasenSchoene,
  author    = {Klasen, Andreas and Sch{\"o}ne, Edna},
  title     = {Erfolgsfaktor Hermesdeckungen},
  series = {ICC Germany-Magazin},
  number    = {2},
  issn      = {2365-7103},
  pages     = {36 -- 39},
  language  = {de}
}