@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}
}