@article{BaumannTillmannAletsee1989,
  author    = {Baumann, Marcus and Tillmann, U. and Aletsee, L.},
  title     = {Distribution of Carbon Among Photosynthetic End Products in the Bloom-Forming Arctic Diatom Thalassiosira antarctica COMBER / Tillmann, U. ; Baumann, M.E.M. ; Aletsee, L.},
  series = {Polar Biology. 10 (1989), H. 3},
  journal   = {Polar Biology. 10 (1989), H. 3},
  isbn      = {0722-4060},
  pages     = {231 -- 238},
  year      = {1989},
  language  = {en}
}
@article{KalbeHoeckerBerndt1989,
  author    = {Kalbe, Jochen and H{\"o}cker, Hartwig and Berndt, Heinz},
  title     = {Design of enzyme reactors as chromatographic columns for racemic resolution of amino acid esters},
  series = {Chromatographia},
  volume    = {28},
  journal   = {Chromatographia},
  number    = {3-4},
  isbn      = {0009-5893},
  doi       = {10.1007/BF02319646},
  pages     = {193 -- 196},
  year      = {1989},
  language  = {en}
}
@article{KuropkaMuellerHoeckeretal.1989,
  author    = {Kuropka, Rolf and M{\"u}ller, Bettina and H{\"o}cker, Hartwig and Berndt, Heinz},
  title     = {Chiral stationary phases via hydrosilylation reaction of N-acryloylamino acids : I. Stationary phase with one chiral centre for high-performance liquid chromatography and development of a new derivatization pattern for amino acid enantiomers},
  series = {Journal of chromatography A},
  journal   = {Journal of chromatography A},
  number    = {481},
  isbn      = {0021-9673},
  pages     = {380 -- 386},
  year      = {1989},
  language  = {en}
}
@article{FeuerriegelMaHoffmann1990,
  author    = {Feuerriegel, Uwe and Ma, J. and Hoffmann, U.},
  title     = {Untersuchungen zur Rußfilterregeneration mit Hilfe von Z{\"u}ndhilfen. Ma, J.; Hoffmann, U.; Feuerriegel, U},
  series = {Erd{\"o}l und Kohle - Erdgas, Brennstoff-Chemie. 43 (1990)},
  journal   = {Erd{\"o}l und Kohle - Erdgas, Brennstoff-Chemie. 43 (1990)},
  isbn      = {0014-0058},
  pages     = {150 -- 157},
  year      = {1990},
  language  = {de}
}
@article{KotterLiRiekert1990,
  author    = {Kotter, Michael and Li, D. X. and Riekert, Lothar},
  title     = {Partial oxidation of o-xylene to phthalic anhydride in a structured fixed bed containing a sequence of catalysts},
  series = {New developments in selective oxidation : proceedings of an international symposium ; Rimini, Italy, Sept. 18 - 22, 1989 / eds.: G. Centi ... - (Studies in surface science and catalysis ; 55)},
  journal   = {New developments in selective oxidation : proceedings of an international symposium ; Rimini, Italy, Sept. 18 - 22, 1989 / eds.: G. Centi ... - (Studies in surface science and catalysis ; 55)},
  publisher = {Elsevier},
  address   = {Amsterdam},
  isbn      = {0-444-88694-X},
  pages     = {267 -- 274},
  year      = {1990},
  language  = {en}
}
@article{KotterXingLi1990,
  author    = {Kotter, Michael and Xing Li, Dong},
  title     = {Partielle Oxidation von o-Xylol zu Phthals{\"a}reanhydrid an V/Ti-Schalenkatalysatoren : [Synopsis 1898]},
  series = {Chemie - Ingenieur - Technik. 62 (1990), H. 11},
  journal   = {Chemie - Ingenieur - Technik. 62 (1990), H. 11},
  isbn      = {0009-286X},
  pages     = {950 -- 951},
  year      = {1990},
  language  = {de}
}
@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}
}
@article{ElbersZangBuck1990,
  author    = {Elbers, Gereon and Zang, Thorsten and Buck, Manfred},
  title     = {Ruß-Immissionsmessungen im Einflußbereich des Kraftfahrzeugverkehrs},
  series = {Staub, Reinhaltung der Luft : air quality control. 50 (1990)},
  journal   = {Staub, Reinhaltung der Luft : air quality control. 50 (1990)},
  isbn      = {0039-0771},
  pages     = {93},
  year      = {1990},
  language  = {de}
}
@article{ElbersThomzik1990,
  author    = {Elbers, Gereon and Thomzik, Manfred},
  title     = {Das Entstehen geruchsintensiver schwefelhaltiger organischer Verbindungen in Lackierereien und M{\"o}glichkeiten zu deren Vermeidung},
  series = {Aus der T{\"a}tigkeit der LIS / Landesanstalt f{\"u}r Immissionsschutz des Landes Nordrhein-Westfalen. 1989 (1990)},
  journal   = {Aus der T{\"a}tigkeit der LIS / Landesanstalt f{\"u}r Immissionsschutz des Landes Nordrhein-Westfalen. 1989 (1990)},
  isbn      = {0931-5497},
  pages     = {35},
  year      = {1990},
  language  = {de}
}
@article{JerominWeise1990,
  author    = {Jeromin, G{\"u}nter Erich and Weise, Sven},
  title     = {Enzymatische Acetylierung von (±)-1-Phthalimido-2-propanol},
  series = {Liebigs Annalen der Chemie (1990)},
  journal   = {Liebigs Annalen der Chemie (1990)},
  isbn      = {0947-3440},
  pages     = {1045 -- 1046},
  year      = {1990},
  language  = {de}
}