@article{KotterRiekert1983,
  author    = {Kotter, Michael and Riekert, L.},
  title     = {Impregnation-type catalysts with nonuniform distribution of the active component},
  series = {Chemical engineering fundamentals. 2 (1983)},
  journal   = {Chemical engineering fundamentals. 2 (1983)},
  isbn      = {0723-0966},
  pages     = {19 -- 38},
  year      = {1983},
  language  = {en}
}
@article{KotterRiekertWeyland1983,
  author    = {Kotter, Michael and Riekert, L. and Weyland, F.},
  title     = {Deposition of ternary oxides as active components by impregnation of porous carriers},
  series = {Preparation of Catalysts III : scientific bases for the preparation of heterogeneous catalysts ; proceedings of the Third International Symposium, Louvain-la-Neuve, September 6-9, 1982 / ed.: G. Poncelet ... - (Studies in surface science and catalysis ; 16)},
  journal   = {Preparation of Catalysts III : scientific bases for the preparation of heterogeneous catalysts ; proceedings of the Third International Symposium, Louvain-la-Neuve, September 6-9, 1982 / ed.: G. Poncelet ... - (Studies in surface science and catalysis ; 16)},
  publisher = {Elsevier},
  address   = {Amsterdam [u.a.]},
  isbn      = {0-444-42184-X},
  pages     = {521 -- 530},
  year      = {1983},
  language  = {en}
}