@article{ZiemonsHerzogFeinendegen1990,
  author    = {Ziemons, Karl and Herzog, H. and Feinendegen, L. E.},
  title     = {Iterative image reconstruction with weighted pixel contribution to projection element},
  series = {European Journal of Nuclear Medicine},
  volume    = {16},
  journal   = {European Journal of Nuclear Medicine},
  number    = {7},
  isbn      = {1619-7089},
  pages     = {403 -- 403},
  year      = {1990},
  language  = {en}
}
@article{StulpeSinger1990,
  author    = {Stulpe, Werner and Singer, Matthias},
  title     = {Informational Incompleteness of the Observables Sx,Sy,Sz for Spin-1 Systems. Singer, Matthias; Stulpe, W.},
  series = {Foundations of Physics. 20 (1990), H. 4},
  journal   = {Foundations of Physics. 20 (1990), H. 4},
  isbn      = {1572-9516},
  pages     = {471 -- 472},
  year      = {1990},
  language  = {en}
}
@article{StulpeSinger1990,
  author    = {Stulpe, Werner and Singer, Matthias},
  title     = {Some Remarks on the Determination of Quantum States by Measurements},
  series = {Foundations of Physics Letters. 3 (1990), H. 2},
  journal   = {Foundations of Physics Letters. 3 (1990), H. 2},
  isbn      = {1572-9524},
  pages     = {153 -- 166},
  year      = {1990},
  language  = {en}
}
@article{StaatWoltersBongartsetal.1990,
  author    = {Staat, Manfred and Wolters, J and Bongarts, W. and Hennings, W. (u.a.)},
  title     = {{\"U}berarbeitete probabilistisch orientierte Sicherheitsanalyse f{\"u}r den HTR-Modul},
  series = {Jahrestagung Kerntechnik '90 / Kerntechnische Gesellschaft e.V. ; Deutsches Atomforum e.V},
  journal   = {Jahrestagung Kerntechnik '90 / Kerntechnische Gesellschaft e.V. ; Deutsches Atomforum e.V},
  publisher = {INFORUM},
  address   = {Bonn},
  pages     = {143 -- 146},
  year      = {1990},
  language  = {de}
}
@misc{SponagelWachowitz1990,
  author    = {Sponagel, Stefan and Wachowitz, Waldemar},
  title     = {Wellendichtung : Offenlegungsschrift DE3830706A1 ; Ver{\"o}ffentlichungstag im Patentblatt: 22.03.1990 / Anmelder: Fa. Carl Freudenberg},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {4 S. : Ill.},
  year      = {1990},
  language  = {de}
}
@article{SponagelLutz1990,
  author    = {Sponagel, Stefan and Lutz, Th.},
  title     = {Ein Beitrag zur Bestimmung der Haertewerte von Elastomeren},
  series = {Kautschuk Gummi Kunststoffe. 43 (1990), H. 10},
  journal   = {Kautschuk Gummi Kunststoffe. 43 (1990), H. 10},
  isbn      = {0022-9520},
  pages     = {861 -- 865},
  year      = {1990},
  language  = {de}
}
@article{SponagelLutz1990,
  author    = {Sponagel, Stefan and Lutz, T.},
  title     = {Aggregatelager},
  series = {Kautschuk Gummi Kunststoffe. 43 (1990), H. 5},
  journal   = {Kautschuk Gummi Kunststoffe. 43 (1990), H. 5},
  isbn      = {0022-9520},
  pages     = {397 -- 406},
  year      = {1990},
  language  = {de}
}
@article{PawelkeSchmittMeissen1990,
  author    = {Pawelke, Siegfried and Schmitt, W. and Meissen, Th.},
  title     = {Aachen 3D finger. 3D digitizer for application in dentistry / Schmitt, W. ; Pawelke, S. ; Meissen, Th.},
  series = {Biomedizinische Technik. 35 (1990), H. 4},
  journal   = {Biomedizinische Technik. 35 (1990), H. 4},
  isbn      = {0013-5585},
  pages     = {69 -- 71},
  year      = {1990},
  language  = {en}
}
@article{GruetersHacklWillms1990,
  author    = {Gr{\"u}ters, Hugo and Hackl, K. and Willms, H.},
  title     = {Stress and strain analyses of rectangular glass plates for large deformations. Part 1. Dimensioning of rectangular plates under surface load and/or line load.},
  series = {Glastechnische Berichte. 63 (1990), H. 3},
  journal   = {Glastechnische Berichte. 63 (1990), H. 3},
  isbn      = {0017-1085},
  pages     = {69 -- 77},
  year      = {1990},
  language  = {en}
}
@article{GruetersHacklWillms1990,
  author    = {Gr{\"u}ters, Hugo and Hackl, K. and Willms, H.},
  title     = {Stress and strain analyses of rectangular glass plates for large deformations. Part 2. Calculation of fracture probabilities in rectangular plates under area load},
  series = {Glastechnische Berichte. 63 (1990), H. 4},
  journal   = {Glastechnische Berichte. 63 (1990), H. 4},
  isbn      = {0017-1085},
  pages     = {93 -- 95},
  year      = {1990},
  language  = {en}
}