@article{SponagelAkbayBeckeretal.1980,
  author    = {Sponagel, Stefan and Akbay, U. and Becker, E. and Krozer, S.},
  title     = {Instability of slow viscometric flow},
  series = {Mechanics Research Communications. 7 (1980), H. 4},
  journal   = {Mechanics Research Communications. 7 (1980), H. 4},
  isbn      = {0093-6413},
  pages     = {199 -- 204},
  year      = {1980},
  language  = {en}
}
@article{SponagelAdbayBeckeretal.1980,
  author    = {Sponagel, Stefan and Adbay, U. and Becker, E. and Krozer, S.},
  title     = {A possible cause of viscoelastic turbulence},
  series = {Rheology : proceedings of the 8th International Congress of Rheology, held in Naples, Italy, September 1 - 5, 1980 / Hrsg. von Giovanni Astarita, Vol. 2},
  journal   = {Rheology : proceedings of the 8th International Congress of Rheology, held in Naples, Italy, September 1 - 5, 1980 / Hrsg. von Giovanni Astarita, Vol. 2},
  publisher = {Plenum Pr.},
  address   = {New York},
  isbn      = {0-306-40465-6},
  pages     = {79 -- 84},
  year      = {1980},
  language  = {en}
}
@article{SponagelAkbay1981,
  author    = {Sponagel, Stefan and Akbay, S.},
  title     = {{\"U}ber die Stabilit{\"a}t viskometrischer Str{\"o}mungen},
  series = {Rheologica acta. 20 (1981), H. 6},
  journal   = {Rheologica acta. 20 (1981), H. 6},
  isbn      = {0035-4511},
  pages     = {579 -- 590},
  year      = {1981},
  language  = {de}
}
@article{SponagelMueller1983,
  author    = {Sponagel, Stefan and M{\"u}ller, H.},
  title     = {Exakte instation{\"a}re L{\"o}sungen der Navier-Stokes-Gleichung. H. M{\"u}ller, S. Sponagel},
  series = {Zeitschrift f{\"u}r angewandte Mathematik und Mechanik: ZAMM. 63 (1983)},
  journal   = {Zeitschrift f{\"u}r angewandte Mathematik und Mechanik: ZAMM. 63 (1983)},
  isbn      = {0044-2267},
  pages     = {T273 -- T275},
  year      = {1983},
  language  = {de}
}
@article{SponagelGroling1983,
  author    = {Sponagel, Stefan and Groling, G.},
  title     = {Eine Bemerkung zum Beweis des \&\#960; Theorems. G. Groling, S. Sponagel},
  series = {Zeitschrift f{\"u}r angewandte Mathematik und Mechanik: ZAMM. 63 (1983)},
  journal   = {Zeitschrift f{\"u}r angewandte Mathematik und Mechanik: ZAMM. 63 (1983)},
  isbn      = {0044-2267},
  pages     = {T258 -- T259},
  year      = {1983},
  language  = {de}
}
@article{SponagelAkbay1984,
  author    = {Sponagel, Stefan and Akbay, U.},
  title     = {{\"U}ber den Mechanismus der Oberfl{\"a}cheninstabilit{\"a}t viskosimetrischer Str{\"o}mungen},
  series = {Rheologica Acta. 23 (1984), H. 2},
  journal   = {Rheologica Acta. 23 (1984), H. 2},
  isbn      = {0035-4511},
  pages     = {185 -- 188},
  year      = {1984},
  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{SponagelAkbay1984,
  author    = {Sponagel, Stefan and Akbay, U.},
  title     = {{\"U}ber den Relaxationseinfluß auf die Stabilit{\"a}t der ebenen Couette-Str{\"o}mung. Akbay, U. ; Sponagel, S.},
  series = {Rheologica Acta. 23 (1984), H. 2},
  journal   = {Rheologica Acta. 23 (1984), H. 2},
  isbn      = {0035-4511},
  pages     = {177 -- 184},
  year      = {1984},
  language  = {de}
}
@article{SponagelAkbayBecker1985,
  author    = {Sponagel, Stefan and Akbay, U. and Becker, E.},
  title     = {Instability of plane Couette flow of viscoelastic liquids},
  series = {Journal of non-Newtonian fluid mechanics. 18 (1985), H. 2},
  journal   = {Journal of non-Newtonian fluid mechanics. 18 (1985), H. 2},
  isbn      = {0377-0257},
  pages     = {123 -- 141},
  year      = {1985},
  language  = {en}
}
@article{Sponagel1987,
  author    = {Sponagel, Stefan},
  title     = {Analytische Berechnung von Gummi- Metall- Verbindungen},
  series = {Konstruktion : Zeitschrift f{\"u}r Produktentwicklung. 39 (1987), H. 4},
  journal   = {Konstruktion : Zeitschrift f{\"u}r Produktentwicklung. 39 (1987), H. 4},
  isbn      = {0373-3300},
  pages     = {151 -- 158},
  year      = {1987},
  language  = {de}
}
@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{SponagelSpaltofski1987,
  author    = {Sponagel, Stefan and Spaltofski, R.},
  title     = {Hochmolekulare Zus{\"a}tze verbessern die Leichtlaufeigenschaft und die Tragf{\"a}higkeit von Schmierfilmen / Sponagel, S. ; Spaltofski, R.},
  series = {Mineral{\"o}ltechnik. 32 (1987), H. 3},
  journal   = {Mineral{\"o}ltechnik. 32 (1987), H. 3},
  isbn      = {0341-1893},
  pages     = {28 S.},
  year      = {1987},
  language  = {de}
}
@article{SponagelSpaltofskiSteinhilper1988,
  author    = {Sponagel, Stefan and Spaltofski, R. and Steinhilper, W.},
  title     = {Hochmolekulare Additive f{\"u}r die Gleitlagerschmierung. Spaltofski, R.; Sponagel, S.; Steinhilper, W.},
  series = {Tribologie und Schmierungstechnik. 35 (1988), H. 5},
  journal   = {Tribologie und Schmierungstechnik. 35 (1988), H. 5},
  isbn      = {0036-6218},
  pages     = {236 -- 241},
  year      = {1988},
  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{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}
}
@article{Sponagel1999,
  author    = {Sponagel, Stefan},
  title     = {Der Mensch als L{\"a}ufer},
  series = {Orthop{\"a}die und Sport : [Bericht zum Stolberger Orthop{\"a}dietag, 13. Juni 1998]},
  journal   = {Orthop{\"a}die und Sport : [Bericht zum Stolberger Orthop{\"a}dietag, 13. Juni 1998]},
  publisher = {Meyer \& Meyer},
  address   = {Aachen},
  isbn      = {978-3-89124-540-8},
  pages     = {15 -- 21},
  year      = {1999},
  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{SponagelUngerSpies2003,
  author    = {Sponagel, Stefan and Unger, J. and Spies, K. H.},
  title     = {H{\"a}rtebegriff im Zusammenhang mit Vernetzung, Bruchdehnung und Dauerfestigkeit eines Elastomers},
  series = {Kautschuk Gummi Kunststoffe. 56 (2003), H. 11},
  journal   = {Kautschuk Gummi Kunststoffe. 56 (2003), H. 11},
  isbn      = {0948-3276},
  pages     = {608 -- 613},
  year      = {2003},
  language  = {de}
}
@article{StaatKuehnHaugeretal.2004,
  author    = {Staat, Manfred and K{\"u}hn, R. and Hauger, W. and Sponagel, Stefan},
  title     = {An Interpretation of Wolff's Law},
  series = {Biomedizinische Technik. 49 (2004)},
  journal   = {Biomedizinische Technik. 49 (2004)},
  isbn      = {0932-4666},
  pages     = {1020 -- 1021},
  year      = {2004},
  language  = {de}
}