@article{TippkoetterRoikaewUlber2008,
  author    = {Tippk{\"o}tter, Nils and Roikaew, W. and Ulber, R.},
  title     = {Nitrate removal from whey concentrate with biotechnological regeneration of the waste water},
  series = {European dairy magazine : EDM},
  journal   = {European dairy magazine : EDM},
  number    = {1},
  isbn      = {0936-6318},
  pages     = {30 -- 32},
  year      = {2008},
  language  = {en}
}
@article{UlberTippkoetterBuchholzetal.2008,
  author    = {Ulber, R. and Tippk{\"o}tter, Nils and Buchholz, H. and Demmer, W. and Scheper, T.},
  title     = {Innovative Verfahren in der Molkeaufarbeitung zur Gewinnung neuer Produkte},
  series = {Deutsche Milchwirtschaft},
  volume    = {59},
  journal   = {Deutsche Milchwirtschaft},
  number    = {19},
  issn      = {0012-0480},
  pages     = {704 -- 706},
  year      = {2008},
  language  = {de}
}