@misc{GrafGrossSponagel1987,
  author    = {Graf, G{\"u}nter and Groß, Heinz and Sponagel, Stefan},
  title     = {Verfahren zur Herstellung eines Dichtringes mit einer Dichtlippe : Patentschrift DE3621241C1 ; Ver{\"o}ffentlichungstag der Patenterteilung : 25.06.1987},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {5 S. : Ill.},
  year      = {1987},
  language  = {de}
}
@misc{SponagelGrafGross1987,
  author    = {Sponagel, Stefan and Graf, G{\"u}nter and Groß, Heinz},
  title     = {Verfahren zur Herstellung eines Dichtringes : Patentschrift DE3621242C1 ; Ver{\"o}ffentlichungstag der Patenterteilung : 25.06.1987 / Anmelder: Fa. Carl Freudenberg. Erfinder: G{\"u}nter Graf ; Heinz Groß ; Stefan Sponagel},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {5 S. : Ill.},
  year      = {1987},
  language  = {de}
}
@book{GrafGrossSponagel1988,
  author    = {Graf, G{\"u}nter and Groß, Heinz and Sponagel, Stefan},
  title     = {Verfahren zur Herstellung eines Dichtringes : Europ{\"a}ische Patentschrift EP0250642B1 ; Ver{\"o}ffentlichungstag der Patentschrift: 11.02.1988},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {[M{\"u}nchen u.a.]},
  pages     = {5 S. : Ill.},
  year      = {1988},
  language  = {de}
}
@article{StaatBaroudTopcuetal.2008,
  author    = {Staat, Manfred and Baroud, G. and Topcu, M. and Sponagel, Stefan},
  title     = {Soft Materials in Technology and Biology - Characteristics, Properties, and Parameter Identification},
  series = {Bioengineering in Cell and Tissue Research / Artmann, Gerhard M. ; Chien, Shu (Eds.)},
  journal   = {Bioengineering in Cell and Tissue Research / Artmann, Gerhard M. ; Chien, Shu (Eds.)},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-540-75408-4},
  pages     = {253 -- 315},
  year      = {2008},
  language  = {en}
}
@misc{SponagelWachowitz1992,
  author    = {Sponagel, Stefan and Wachowitz, Waldemar},
  title     = {Shaft seal : United States Patent 5,143,385 ; date of patent: Sep. 1, 1992 / assignee: Firma Carl Freudenberg},
  publisher = {[United States Patent and Trademark Office]},
  address   = {[Alexandria, VA]},
  pages     = {5 S. : Ill.},
  year      = {1992},
  language  = {en}
}
@article{SponagelKilthauSpies1987,
  author    = {Sponagel, Stefan and Kilthau, G. and Spies, K. H.},
  title     = {Sealing mechanism of lip seals},
  series = {Eleventh 11th International Conference on Fluid Sealing : proceedings of the 11th Internat. Conference on Fluid Sealing, held at Cannes, France 8 - 10 April, 1987 / organised and sponsored by BHRA, the Fluid Engineering Centre. Ed. B. S. Nau},
  journal   = {Eleventh 11th International Conference on Fluid Sealing : proceedings of the 11th Internat. Conference on Fluid Sealing, held at Cannes, France 8 - 10 April, 1987 / organised and sponsored by BHRA, the Fluid Engineering Centre. Ed. B. S. Nau},
  publisher = {Elsevier},
  address   = {London},
  isbn      = {3-540-51383-3},
  pages     = {748 -- 772},
  year      = {1987},
  language  = {en}
}
@article{FrankBuchwaldPennekampetal.2009,
  author    = {Frank, T. and Buchwald, D. and Pennekamp, W. and Reber, D. and Sponagel, Stefan and Laszkovics, A. and Weber, Hans-Joachim},
  title     = {R{\"o}ntgenologische Untersuchung der Str{\"o}mungseigenschaften funktioneller Komponenten der Herz-Lungen-Maschine},
  series = {Kardiotechnik. 18 (2009), H. 2},
  journal   = {Kardiotechnik. 18 (2009), H. 2},
  isbn      = {0941-2670},
  pages     = {31 -- 35},
  year      = {2009},
  language  = {de}
}
@article{SponagelBecker1984,
  author    = {Sponagel, Stefan and Becker, E.},
  title     = {Reibungsfreie, ebene Diffusorstr{\"o}mung mit beliebigem Einlaufprofil. E. Becker, S. Sponagel},
  series = {Zeitschrift f{\"u}r angewandte Mathematik und Mechanik: ZAMM. 64 (1984)},
  journal   = {Zeitschrift f{\"u}r angewandte Mathematik und Mechanik: ZAMM. 64 (1984)},
  isbn      = {0044-2267},
  pages     = {T174 -- T177},
  year      = {1984},
  language  = {de}
}
@article{SponagelBaroudSteffenetal.2002,
  author    = {Sponagel, Stefan and Baroud, G. and Steffen, T. and Wu, J.},
  title     = {Parameter identification for cement infiltration of osteoporotic bone},
  series = {Poromechanics II : Proceedings of the Second Biot Conference on Poromechanics Grenoble, France 26 - 28 August 2002 / ed. by J.-L. Auriault ...},
  journal   = {Poromechanics II : Proceedings of the Second Biot Conference on Poromechanics Grenoble, France 26 - 28 August 2002 / ed. by J.-L. Auriault ...},
  publisher = {Balkema},
  address   = {Lisse [u.a.]},
  isbn      = {90-5809-394-8},
  pages     = {55 -- 58},
  year      = {2002},
  language  = {en}
}
@article{SponagelUnger1998,
  author    = {Sponagel, Stefan and Unger, J.},
  title     = {Organisation und Strukturierung technischer Messungen},
  series = {Werkstattstechnik. 88 (1998), H. 5},
  journal   = {Werkstattstechnik. 88 (1998), H. 5},
  isbn      = {1436-5006},
  pages     = {223 -- 226},
  year      = {1998},
  language  = {de}
}