@book{Grotendorst1994,
  author    = {Grotendorst, Johannes},
  title     = {Calculation of Chemical Equilibrium Compositions : Interner Bericht},
  publisher = {Forschungszentrum J{\"u}lich},
  address   = {J{\"u}lich},
  pages     = {11 S.},
  year      = {1994},
  language  = {en}
}
@book{GrotendorstDornseifferSchoberth1994,
  author    = {Grotendorst, Johannes and Dornseiffer, J{\"u}rgen and Schoberth, Siegfried M.},
  title     = {Symbolic-numeric computation techniques for problem-solving in Physical Chemistry and Biochemistry . Stand 08.06.1994 / Grotendorst, Johannes ; Dornseiffer, J{\"u}rgen ; Schoberth, Siegfried M.},
  publisher = {ZAM, KFA},
  address   = {J{\"u}lich},
  pages     = {9 S.},
  year      = {1994},
  language  = {en}
}
@book{GrotendorstDornseifferSchoberth1994,
  author    = {Grotendorst, Johannes and Dornseiffer, J{\"u}rgen and Schoberth, Siegfried M.},
  title     = {Symbolic-numeric computation techniques for problem-solving in Physical Chemistry and Biochemistry . Stand 08.06.1994 / Grotendorst, Johannes ; Dornseiffer, J{\"u}rgen ; Schoberth, Siegfried M.},
  publisher = {ZAM, KFA},
  address   = {J{\"u}lich},
  pages     = {9 S.},
  year      = {1994},
  language  = {en}
}
@article{GrotendorstJansenSchoberth1993,
  author    = {Grotendorst, Johannes and Jansen, Paul and Schoberth, Siegfried},
  title     = {On Solving the McConnell Equations in Biochemistry / Grotendorst, Johannes ; Jansen, Paul ; Schoberth, Siegfried},
  series = {MapleTech. 1 (1993)},
  journal   = {MapleTech. 1 (1993)},
  isbn      = {1061-5733},
  pages     = {56 -- 62},
  year      = {1993},
  language  = {en}
}
@article{Grotendorst1992,
  author    = {Grotendorst, Johannes},
  title     = {Algorithms of mixed symbolic-numeric type for rational approximation},
  series = {Artificial intelligence, expert systems and symbolic computing : selected and revised papers from the IMACS 13th World Congress [on Computation and Applied Mathematics], Dublin, Ireland, July 1991 / ed. by Elias N. Houstis ...},
  journal   = {Artificial intelligence, expert systems and symbolic computing : selected and revised papers from the IMACS 13th World Congress [on Computation and Applied Mathematics], Dublin, Ireland, July 1991 / ed. by Elias N. Houstis ...},
  publisher = {North-Holland},
  address   = {Amsterdam},
  isbn      = {0-444-89703-8},
  pages     = {145 -- 154},
  year      = {1992},
  language  = {en}
}
@article{Grotendorst1991,
  author    = {Grotendorst, Johannes},
  title     = {A Maple package for transforming series, sequences and functions},
  series = {Computer Physics Communications. 67 (1991), H. 2},
  journal   = {Computer Physics Communications. 67 (1991), H. 2},
  isbn      = {0010-4655},
  pages     = {325 -- 342},
  year      = {1991},
  language  = {en}
}
@article{Grotendorst1990,
  author    = {Grotendorst, Johannes},
  title     = {Approximating functions by means of symbolic computation and a general extrapolation method},
  series = {Computer Physics Communications. 59 (1990), H. 2},
  journal   = {Computer Physics Communications. 59 (1990), H. 2},
  isbn      = {0010-4655},
  pages     = {289 -- 301},
  year      = {1990},
  language  = {en}
}
@article{WeberHekmatZimmermannetal.2004,
  author    = {Weber, Hans-Joachim and Hekmat, K. and Zimmermann, T. and Kampe, S.},
  title     = {Impact of tranexamic acid vs. aprotinin on blood loss and transfusion requirements after cardiopulmonary bypass: a prospective, randomised, double-blind trial / Hekmat, K. ; Zimmermann, T. ; Kampe, S. ; Kasper, S. M. ; Weber, H. J. ; Geissler, H. J. ; Meh},
  series = {Current Medical Research and Opinion. 20 (2004), H. 1},
  journal   = {Current Medical Research and Opinion. 20 (2004), H. 1},
  isbn      = {0300-7995},
  pages     = {121 -- 126},
  year      = {2004},
  language  = {en}
}
@book{Laack2001,
  author    = {Laack, Walter van},
  title     = {A better history of our world / Vol. 1. The universe},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-8311-1490-0},
  pages     = {188 S.},
  year      = {2001},
  language  = {en}
}
@book{Laack2002,
  author    = {Laack, Walter van},
  title     = {A better history of our world / Vol. 2. Life},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-8311-2597-5},
  pages     = {236 S.},
  year      = {2002},
  language  = {en}
}