@article{KotterHammonRiekert1988,
  author    = {Kotter, Michael and Hammon, Ulrich and Riekert, Lothar},
  title     = {Formation of ethene and propene from methanol on zeolite ZSM-5 II. Preparation of finished catalysts and operation of a fixed-bed pilot plant / U. Hammon ; M. Kotter ; L. Riekert},
  series = {Applied catalysis. 37 (1988)},
  journal   = {Applied catalysis. 37 (1988)},
  isbn      = {0166-9834},
  pages     = {155 -- 174},
  year      = {1988},
  language  = {en}
}
@article{KotterLintzRiekertetal.1989,
  author    = {Kotter, Michael and Lintz, Hans-G{\"u}nther and Riekert, Lothar and Trimm, D. L.},
  title     = {Structure and selectivity changes in vanadia-titania catalysts used to promote the reduction of nitric oxide with ammonia},
  series = {Applied catalysis. 52 (1989), H. 1},
  journal   = {Applied catalysis. 52 (1989), H. 1},
  isbn      = {0166-9834},
  pages     = {225 -- 235},
  year      = {1989},
  language  = {en}
}
@article{KotterGrazykGeissleetal.1990,
  author    = {Kotter, Michael and Grazyk, J. and Geißle, W. and Roth, A.},
  title     = {Fließeigenschaften von Keramiken f{\"u}r die Herstellung von Katalysatortr{\"a}gern / J. Grazyk ; W. Gleißle ; A. Roth ; M. Kotter},
  series = {Erd{\"o}l \& Kohle, Erdgas, Petrochemie : EKEP. 43 (1990), H. 1},
  journal   = {Erd{\"o}l \& Kohle, Erdgas, Petrochemie : EKEP. 43 (1990), H. 1},
  isbn      = {0014-0058},
  pages     = {27 -- 30},
  year      = {1990},
  language  = {de}
}