@article{ArtmannZerlinDigeletal.2007,
  author    = {Artmann, Gerhard and Zerlin, Kay and Digel, Ilya and Stadler, Andreas M.},
  title     = {Physical discontinuities at body temperature in human red blood cells / Artmann, GM ; Zerlin, K ; Digel, I ; Stadler, A ; Zaccai, G ; Temiz, AA},
  series = {Tissue Engineering. 13 (2007), H. 7},
  journal   = {Tissue Engineering. 13 (2007), H. 7},
  isbn      = {1076-3279},
  pages     = {1778 -- 1778},
  year      = {2007},
  language  = {en}
}
@article{DigelKayserArtmann2008,
  author    = {Digel, Ilya and Kayser, Peter and Artmann, Gerhard},
  title     = {Molecular processes in biological thermosensation},
  series = {Journal of Biophysics. 2008 (2008)},
  journal   = {Journal of Biophysics. 2008 (2008)},
  isbn      = {1687-8000},
  pages     = {1 -- 9},
  year      = {2008},
  language  = {en}
}
@article{ZerlinDigelStadleretal.2007,
  author    = {Zerlin, Kay and Digel, Ilya and Stadler, Andreas M. and B{\"u}ldt, Georg and Zaccai, Guiseppe and Artmann, Gerhard},
  title     = {Dynamics and interactions of hemoglobin in human red blood cells and concentrated hemoglobin solutions},
  series = {Regenerative medicine. 2 (2007), H. 5},
  journal   = {Regenerative medicine. 2 (2007), H. 5},
  isbn      = {1746-0751},
  pages     = {573 -- 573},
  year      = {2007},
  language  = {en}
}
@article{StadlerGarveyBocahutetal.2012,
  author    = {Stadler, Andreas M. and Garvey, G. J. and Bocahut, A. and Sacquin-Mora, S. and Digel, Ilya and Schneider, G. J. and Natali, F. and Artmann, Gerhard and Zaccai, G.},
  title     = {Thermal fluctuations of haemoglobin from different species : adaptation to temperature via conformational dynamics},
  series = {Journal of the Royal Society Interface},
  volume    = {9},
  journal   = {Journal of the Royal Society Interface},
  number    = {76},
  publisher = {The Royal Society},
  address   = {London},
  issn      = {1742-5689},
  doi       = {10.1098/rsif.2012.0364},
  pages     = {2845 -- 2855},
  year      = {2012},
  abstract  = {Thermodynamic stability, configurational motions and internal forces of haemoglobin (Hb) of three endotherms (platypus, Ornithorhynchus anatinus; domestic chicken, Gallus gallus domesticus and human, Homo sapiens) and an ectotherm (salt water crocodile, Crocodylus porosus) were investigated using circular dichroism, incoherent elastic neutron scattering and coarse-grained Brownian dynamics simulations. The experimental results from Hb solutions revealed a direct correlation between protein resilience, melting temperature and average body temperature of the different species on the 0.1 ns time scale. Molecular forces appeared to be adapted to permit conformational fluctuations with a root mean square displacement close to 1.2 {\AA} at the corresponding average body temperature of the endotherms. Strong forces within crocodile Hb maintain the amplitudes of motion within a narrow limit over the entire temperature range in which the animal lives. In fully hydrated powder samples of human and chicken, Hb mean square displacements and effective force constants on the 1 ns time scale showed no differences over the whole temperature range from 10 to 300 K, in contrast to the solution case. A complementary result of the study, therefore, is that one hydration layer is not sufficient to activate all conformational fluctuations of Hb in the pico- to nanosecond time scale which might be relevant for biological function. Coarse-grained Brownian dynamics simulations permitted to explore residue-specific effects. They indicated that temperature sensing of human and chicken Hb occurs mainly at residues lining internal cavities in the β-subunits.},
  language  = {en}
}
@article{StadlerDigelArtmannetal.2008,
  author    = {Stadler, A. M. and Digel, Ilya and Artmann, Gerhard and Embs, Jan P. and Zaccai, Joe and B{\"u}ldt, Georg},
  title     = {Hemoglobin Dynamics in Red Blood Cells: Correlation to Body Temperature},
  series = {Biophysical Journal. 95 (2008), H. 11},
  journal   = {Biophysical Journal. 95 (2008), H. 11},
  isbn      = {1542-0086},
  pages     = {5449 -- 5461},
  year      = {2008},
  language  = {en}
}
@inproceedings{SchlemmerPorstBassametal.2017,
  author    = {Schlemmer, Katharina and Porst, Dariusz and Bassam, Rasha and Artmann, Gerhard and Digel, Ilya},
  title     = {Effects of nitric oxide (NO) and ATP on red blood cell phenotype and deformability},
  series = {2nd YRA MedTech Symposium 2017 : June 8th - 9th / 2017 / Hochschule Ruhr-West},
  booktitle = {2nd YRA MedTech Symposium 2017 : June 8th - 9th / 2017 / Hochschule Ruhr-West},
  editor    = {Erni, Daniel and Fischerauer, Alice and Himmel, J{\"o}rg and Seeger, Thomas and Thelen, Klaus},
  publisher = {Universit{\"a}t Duisburg-Essen},
  address   = {Duisburg},
  organization    = {MedTech Symposium},
  isbn      = {978-3-9814801-9-1},
  doi       = {10.17185/duepublico/43984},
  pages     = {100 -- 101},
  year      = {2017},
  language  = {en}
}
@inproceedings{DachwaldMikuckiTulaczyketal.2012,
  author    = {Dachwald, Bernd and Mikucki, Jill A. and Tulaczyk, Slawek and Digel, Ilya and Feldmann, Marco and Espe, Clemens and Plescher, Engelbert and Xu, Changsheng},
  title     = {IceMole - a maneuverable probe for clean in-situ analysis and sampling of subsurface ice and subglacial aquatic ecosystems : extended abstract / SCAR Open Science Conference 2012, Session 29: Advancing Clean Technologies for Exploration of Glacial Aquatic Ecosystems},
  year      = {2012},
  abstract  = {The "IceMole" is a novel maneuverable subsurface ice probe for clean in-situ analysis and sampling of subsurface ice and subglacial water/brine. It is developed and build at FH Aachen University of Applied Sciences' Astronautical Laboratory. A first prototype was successfully tested on the Swiss Morteratsch glacier in 2010. Clean sampling is achieved with a hollow ice screw (as it is used in mountaineering) at the tip of the probe. Maneuverability is achieved with a differentially heated melting head. Funded by the German Space Agency (DLR), a consortium led by FH Aachen currently develops a much more advanced IceMole probe, which includes a sophisticated system for obstacle avoidance, target detection, and navigation in the ice. We intend to use this probe for taking clean samples of subglacial brine at the Blood Falls (McMurdo Dry Valleys, East Antarctica) for chemical and microbiological analysis. In our conference contribution, we 1) describe the IceMole design, 2) report the results of the field tests of the first prototype on the Morteratsch glacier, 3) discuss the probe's potential for the clean in-situ analysis and sampling of subsurface ice and subglacial liquids, and 4) outline the way ahead in the development of this technology.},
  subject      = {Eisschicht},
  language  = {en}
}
@article{KonstantinidisFloresMartinezDachwaldetal.2015,
  author    = {Konstantinidis, Konstantinos and Flores Martinez, Claudio and Dachwald, Bernd and Ohndorf, Andreas and Dykta, Paul and Bowitz, Pascal and Rudolph, Martin and Digel, Ilya and Kowalski, Julia and Voigt, Konstantin and F{\"o}rstner, Roger},
  title     = {A lander mission to probe subglacial water on Saturn's moon enceladus for life},
  series = {Acta astronautica},
  volume    = {Vol. 106},
  journal   = {Acta astronautica},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1879-2030 (E-Journal); 0094-5765 (Print)},
  pages     = {63 -- 89},
  year      = {2015},
  language  = {en}
}
@article{DachwaldMikuckiTulaczyketal.2014,
  author    = {Dachwald, Bernd and Mikucki, Jill and Tulaczyk, Slawek and Digel, Ilya and Espe, Clemens and Feldmann, Marco and Francke, Gero and Kowalski, Julia and Xu, Changsheng},
  title     = {IceMole : A maneuverable probe for clean in situ analysis and sampling of subsurface ice and subglacial aquatic ecosystems},
  series = {Annals of Glaciology},
  volume    = {55},
  journal   = {Annals of Glaciology},
  number    = {65},
  publisher = {Cambridge University Press},
  address   = {Cambridge},
  issn      = {1727-5644},
  doi       = {10.3189/2014AoG65A004},
  pages     = {14 -- 22},
  year      = {2014},
  abstract  = {There is significant interest in sampling subglacial environments for geobiological studies, but they are difficult to access. Existing ice-drilling technologies make it cumbersome to maintain microbiologically clean access for sample acquisition and environmental stewardship of potentially fragile subglacial aquatic ecosystems. The IceMole is a maneuverable subsurface ice probe for clean in situ analysis and sampling of glacial ice and subglacial materials. The design is based on the novel concept of combining melting and mechanical propulsion. It can change melting direction by differential heating of the melting head and optional side-wall heaters. The first two prototypes were successfully tested between 2010 and 2012 on glaciers in Switzerland and Iceland. They demonstrated downward, horizontal and upward melting, as well as curve driving and dirt layer penetration. A more advanced probe is currently under development as part of the Enceladus Explorer (EnEx) project. It offers systems for obstacle avoidance, target detection, and navigation in ice. For the EnEx-IceMole, we will pay particular attention to clean protocols for the sampling of subglacial materials for biogeochemical analysis. We plan to use this probe for clean access into a unique subglacial aquatic environment at Blood Falls, Antarctica, with return of a subglacial brine sample.},
  language  = {en}
}
@techreport{BlandfordDachwaldDigeletal.2015,
  author    = {Blandford, Daniel and Dachwald, Bernd and Digel, Ilya and Espe, Clemens and Feldmann, Marco and Francke, Gero and Hiecke, Hannah and Kowalski, Julia and Lindner, Peter and Plescher, Engelbert and Sch{\"o}ngarth, Sarah},
  title     = {Enceladus Explorer : Schlussbericht — Version: 1.0},
  publisher = {FH Aachen},
  address   = {Aachen},
  doi       = {10.2314/GBV:86319950X},
  year      = {2015},
  language  = {de}
}
@book{StaatDigelTrzewiketal.2024,
  author    = {Staat, Manfred and Digel, Ilya and Trzewik, J{\"u}rgen and Sielemann, Stefanie and Erni, Daniel and Zylka, Waldemar},
  title     = {Symposium Proceedings; 4th YRA MedTech Symposium 2024 : February 1 / 2024 / FH Aachen},
  publisher = {Universit{\"a}t Duisburg-Essen},
  address   = {Duisburg},
  organization    = {MedTech Symposium},
  isbn      = {978-3-940402-65-3},
  doi       = {10.17185/duepublico/81475},
  pages     = {40 Seiten},
  year      = {2024},
  language  = {en}
}
@article{BaroudWuBohneretal.2003,
  author    = {Baroud, G. and Wu, J.Z. and Bohner, M and Sponagel, Stefan and Steffen, T.},
  title     = {How to determine the permeability for cement infiltration into osteoporotic cancellous bone},
  series = {Medical Engineering \& Physics. 25 (2003), H. 4},
  journal   = {Medical Engineering \& Physics. 25 (2003), H. 4},
  issn      = {1350-4533},
  pages     = {283 -- 288},
  year      = {2003},
  abstract  = {Cement augmentation is an emerging surgical procedure in which bone cement is used to infiltrate and reinforce osteoporotic vertebrae. Although this infiltration procedure has been widely applied, it is performed empirically and little is known about the flow characteristics of cement during the injection process. We present a theoretical and experimental approach to investigate the intertrabecular bone permeability during the infiltration procedure. The cement permeability was considered to be dependent on time, bone porosity, and cement viscosity in our analysis. In order to determine the time-dependent permeability, ten cancellous bone cores were harvested from osteoporotic vertebrae, infiltrated with acrylic cement at a constant flow rate, and the pressure drop across the cores during the infiltration was measured. The viscosity dependence of the permeability was determined based on published experimental data. The theoretical model for the permeability as a function of bone porosity and time was then fit to the testing data. Our findings suggest that the intertrabecular bone permeability depends strongly on time. For instance, the initial permeability (60.89 mm4/N.s) reduced to approximately 63\% of its original value within 18 seconds. This study is the first to analyze cement flow through osteoporotic bone. The theoretical and experimental models provided in this paper are generic. Thus, they can be used to systematically study and optimize the infiltration process for clinical practice.},
  subject      = {Osteoporose},
  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{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{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{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{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}
}
@book{Sponagel1982,
  author    = {Sponagel, Stefan},
  title     = {{\"U}ber die Stabilit{\"a}t einer einfachen viskometrischen Bewegung},
  address   = {Darmstadt},
  pages     = {106 S. : graph. Darst., 21 cm},
  year      = {1982},
  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}
}
@book{Sponagel1987,
  author    = {Sponagel, Stefan},
  title     = {Gummi-Metall-Bauteile},
  address   = {Kaiserslautern},
  pages     = {126 S. : Ill., graph. Darst.},
  year      = {1987},
  language  = {de}
}
@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{SponagelBaroudFalketal.2004,
  author    = {Sponagel, Stefan and Baroud, G. and Falk, R. and Crookshank, M.},
  title     = {Experimental and theoretical investigation of directional permeability of human vertebral cancellous bone for cement infiltration. G. Baroud, R. Falk, M. Crookshank, S. Sponagel, T. Steffen},
  series = {Journal of Biomechanics. 37 (2004), H. 2},
  journal   = {Journal of Biomechanics. 37 (2004), H. 2},
  isbn      = {0021-9290},
  pages     = {189 -- 196},
  year      = {2004},
  language  = {en}
}
@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{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{SponagelBaroudFalketal.2004,
  author    = {Sponagel, Stefan and Baroud, G. and Falk, R. and Crookshank, M.},
  title     = {Corrigendum to "Experimental and theoretical investigation of directional permeability of human vertebral cancellous bone for cement infiltration". Baroud, G.; Falk, R.; Crookshank, M.; Sponagel, S.; Steffen, T.},
  series = {Journal of Biomechanics. 37 (2004), H. 2},
  journal   = {Journal of Biomechanics. 37 (2004), H. 2},
  isbn      = {0021-9290},
  pages     = {1802},
  year      = {2004},
  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{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{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{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{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{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}
}
@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}
}
@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}
}
@misc{SponagelGrafGross1989,
  author    = {Sponagel, Stefan and Graf, G{\"u}nter and Groß, Heinz},
  title     = {Method for manufacturing a sealing ring : United States Patent 4,861,536 ; date of patent: Aug. 12, 1989 / assignee: Firma Carl Freudenberg. Inventors: Gunter Graf ; Heinz Gross ; Stefan Sponagel},
  publisher = {[United States Patent and Trademark Office]},
  address   = {[Alexandria, VA]},
  pages     = {5 S. : Ill.},
  year      = {1989},
  language  = {en}
}
@misc{SponagelGrafGross1989,
  author    = {Sponagel, Stefan and Graf, G{\"u}nter and Groß, Heinz},
  title     = {Method for the manufacture of a sealing ring with a sealing lip having hydrodynamically acting return elements : United States Patent 4,850,097 ; date of patent: Jul. 25, 1989 / assignee: Firma Carl Freudenberg. Inventors: Gunter Graf ; Heinz Gross ; Stefan Sponagel},
  publisher = {[United States Patent and Trademark Office]},
  address   = {[Alexandria, VA]},
  pages     = {4 S. : Ill.},
  year      = {1989},
  language  = {en}
}
@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}
}
@misc{SponagelMasbergHartmann1999,
  author    = {Sponagel, Stefan and Masberg, Mariane and Hartmann, Jochen},
  title     = {Kraftfahrzeugk{\"u}hlwasserpumpe : Offenlegungsschrift DE19803739A1 ; Ver{\"o}ffentlichungstag im Patentblatt: 12.08.1999},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {6 S. : Ill.},
  year      = {1999},
  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}
}
@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{SponagelWachowitz1993,
  author    = {Sponagel, Stefan and Wachowitz, Waldemar},
  title     = {Wellendichtung : Europ{\"a}ische Patentschrift DE3621242C1 ; Ver{\"o}ffentlichungstag der Patentschrift : 06.06.1993 / Anmelder: Fa. Carl Freudenberg},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {[M{\"u}nchen u.a.]},
  pages     = {5 S. : Ill.},
  year      = {1993},
  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{BehbahaniBehrHormesetal.2009,
  author    = {Behbahani, Mehdi and Behr, M. and Hormes, M. and Steinseifer, U. and Arora, D. and Coronado, O. and Pasquali, M.},
  title     = {A Review of Computational Fluid Dynamics Analysis of Blood Pumps},
  series = {European Journal of Applied Mathematics. 20 (2009), H. 4},
  journal   = {European Journal of Applied Mathematics. 20 (2009), H. 4},
  publisher = {Cambridge Univ. Press},
  address   = {Cambridge},
  pages     = {363 -- 397},
  year      = {2009},
  language  = {en}
}
@article{BehbahaniFinocchiaroHeinkeetal.2009,
  author    = {Behbahani, Mehdi and Finocchiaro, Thomas and Heinke, Stefanie and Leßmann, Marc},
  title     = {Methods of design, simulation, and control for the development of new VAD/TAH concepts = Methoden zur Konstruktion, Simulation und Regelung f{\"u}r die Entwicklung von neuen VAD/TAH-Konzepten / Finocchiaro, Thomas ; Heinke, Stefanie ; Behbahani, Mehdi ; Leßma},
  series = {Biomedizinische Technik / Biomedical Engineering. 54 (2009), H. 5},
  journal   = {Biomedizinische Technik / Biomedical Engineering. 54 (2009), H. 5},
  isbn      = {0013-5585},
  pages     = {269 -- 281},
  year      = {2009},
  language  = {en}
}
@article{BehbahaniSpillnerKoppetal.2009,
  author    = {Behbahani, Mehdi and Spillner, Jan and Kopp, R{\"u}diger and Finocchiaro, Thomas},
  title     = {Assistierte Zirkulation : ein {\"U}berblick aus klinischer Sicht = Assisted circulation: an overview from a clinical perspective / Spillner, Jan ; Kopp, R{\"u}diger ; Finocchiaro, Thomas ; Behbahani, Mehdi ; Rossaint, Rolf ; Steinseifer, Ulrich ; Behr, Marek ; Au},
  series = {Biomedizinische Technik / Biomedical Engineering. 54 (2009), H. 5},
  journal   = {Biomedizinische Technik / Biomedical Engineering. 54 (2009), H. 5},
  publisher = {De Gruyter},
  address   = {Berlin},
  isbn      = {0013-5585},
  pages     = {255 -- 267},
  year      = {2009},
  language  = {de}
}
@article{BehbahaniBehrNicolaietal.2008,
  author    = {Behbahani, Mehdi and Behr, Marek and Nicolai, Mike and Probst, Markus},
  title     = {Towards Shape Optimization for Ventricular Assist Devices Using Parallel Stabilized FEM},
  series = {NIC Symposium 2008 : symposium, 20 - 21 February 2008, Forschungszentrum J{\"u}lich ; proceedings / organized by John von Neumann Institute for Computing. Ed. by Gernot M{\"u}nster; Dietrich Wolf; Manfred Kremer (ed.)},
  journal   = {NIC Symposium 2008 : symposium, 20 - 21 February 2008, Forschungszentrum J{\"u}lich ; proceedings / organized by John von Neumann Institute for Computing. Ed. by Gernot M{\"u}nster; Dietrich Wolf; Manfred Kremer (ed.)},
  publisher = {Forschungszentrum},
  address   = {J{\"u}lich},
  isbn      = {978-3-9810843-5-1},
  pages     = {325 -- 332},
  year      = {2008},
  language  = {en}
}
@article{BehbahaniNicolaiProbstetal.2007,
  author    = {Behbahani, Mehdi and Nicolai, M. and Probst, M. and Behr, M.},
  title     = {Simulation of Blood Flow in a Ventricular Assist Device},
  series = {inSIDE. 5 (2007), H. 1},
  journal   = {inSIDE. 5 (2007), H. 1},
  pages     = {28 -- 31},
  year      = {2007},
  language  = {en}
}