@article{KotterRiekert1987,
  author    = {Kotter, Michael and Riekert, L.},
  title     = {Tr{\"a}nkkontakte zur partiellen Oxidation von Buten zu Maleins{\"a}ureanhydrid},
  series = {Chemie - Ingenieur - Technik. 59 (1987), H. 9},
  journal   = {Chemie - Ingenieur - Technik. 59 (1987), H. 9},
  isbn      = {0009-286X},
  pages     = {733 -- 734},
  year      = {1987},
  language  = {de}
}
@article{KotterLintz1987,
  author    = {Kotter, Michael and Lintz, Hans-G{\"u}nther},
  title     = {R{\´e}duction catalytique s{\´e}l{\´e}ktive des oxydes d'azote : une conc{\´e}ption originale},
  series = {Entropie. 23 (1987), H. 137/138},
  journal   = {Entropie. 23 (1987), H. 137/138},
  isbn      = {0013-9084},
  pages     = {109 -- 116},
  year      = {1987},
  language  = {de}
}
@article{LassonczykWiechmann1987,
  author    = {Lassonczyk, Beate and Wiechmann, H.},
  title     = {Untersuchungen zum Akkumulationsverhalten l{\"o}slicher organischer Substanzen in Podsolen},
  series = {Mitteilungen der Deutschen Bodenkundlichen Gesellschaft. 55 (1987)},
  journal   = {Mitteilungen der Deutschen Bodenkundlichen Gesellschaft. 55 (1987)},
  isbn      = {0343-107x},
  pages     = {791 -- 796},
  year      = {1987},
  language  = {de}
}
@article{MootzMerschenzQuack1987,
  author    = {Mootz, D. and Merschenz-Quack, Angelika},
  title     = {Zur Kenntnis der h{\"o}chsten Hydrate der Schwefels{\"a}ure: Bildung und Struktur von H2SO4·6,5 H2O und H2SO4·8H2O},
  series = {Zeitschrift f{\"u}r Naturforschung B: Journal of chemical sciences},
  volume    = {42},
  journal   = {Zeitschrift f{\"u}r Naturforschung B: Journal of chemical sciences},
  number    = {H. 10},
  issn      = {1865-7117 (E-Journal); 0932-0776 (Print)},
  pages     = {1231 -- 1236},
  year      = {1987},
  language  = {de}
}