@misc{2409,
  author       = {{Upmann, Matthias and Wellm, G.}},
  booktitle    = {{Encyclopedia of meat sciences}},
  editor       = {{Jensen, Werner K.}},
  isbn         = {{0-12-464970-x}},
  pages        = {{1119--1129}},
  publisher    = {{Elsevier  }},
  title        = {{{Quality management: Abattoirs and processing plants}}},
  volume       = {{3}},
  year         = {{2004}},
}

@misc{2410,
  author       = {{Upmann, Matthias and Stephan, R.}},
  booktitle    = {{Encyclopedia of meat sciences}},
  editor       = {{Jensen, Werner K.}},
  isbn         = {{0-12-464970-x}},
  pages        = {{667--674}},
  publisher    = {{Elsevier}},
  title        = {{{Laboratory accreditation}}},
  volume       = {{2}},
  year         = {{2004}},
}

@misc{2411,
  author       = {{Upmann, Matthias and Jakob, P.}},
  booktitle    = {{Encyclopedia of meat sciences}},
  editor       = {{Jensen, Werner K.}},
  isbn         = {{0-12-464970-x}},
  pages        = {{547--558}},
  publisher    = {{Elsevier}},
  title        = {{{HACCP and self-regulation}}},
  volume       = {{2}},
  year         = {{2004}},
}