@book{Harder1990,
  author    = {Harder, J{\"o}rn},
  title     = {Zur Messung von Werkstoffparametern im Torsionsschwingversuch},
  address   = {Braunschweig},
  pages     = {90 S.},
  year      = {1990},
  language  = {de}
}
@article{Harder1999,
  author    = {Harder, J{\"o}rn},
  title     = {A crystallographic model for the study of local deformation processes in polycrystals},
  series = {International journal of plasticity. 15 (1999), H. 6},
  journal   = {International journal of plasticity. 15 (1999), H. 6},
  isbn      = {0749-6419},
  pages     = {605 -- 624},
  year      = {1999},
  language  = {en}
}
@book{Esch2005,
  author    = {Esch, Thomas},
  title     = {Experimentelle Untersuchungen an Verbrennungsmotoren. - 7. Aufl.},
  publisher = {Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik},
  address   = {Aachen},
  pages     = {Getr. Z{\"a}hlung : Ill., graph. Darst.},
  year      = {2005},
  language  = {de}
}
@book{Esch2005,
  author    = {Esch, Thomas},
  title     = {Technische Thermodynamik},
  publisher = {Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik},
  address   = {Aachen},
  pages     = {Getr. Z{\"a}hlung : graph. Darst.},
  year      = {2005},
  language  = {de}
}
@book{Ley1999,
  author    = {Ley, Wilfried},
  title     = {Raumflugbetrieb : Gemeinschaftsveranstaltung der FH Aachen, der DGLR und der DLR / 12. Raumfahrt-Kolloquium an der Fachhochschule Aachen, 11. November 1999. / Ley Wilfried [Hrsg.]},
  publisher = {DGLR},
  address   = {Bonn},
  isbn      = {3-932182-07-03},
  pages     = {VIII, 215 S. : zahlr. Ill., graph. Darst.},
  year      = {1999},
  language  = {de}
}
@book{Ley2000,
  author    = {Ley, Wilfried},
  title     = {Meteoriten und Space Debris : Gemeinschaftsveranstaltung der FH Aachen, der DGLR und der DLR / 13. Raumfahrt-Kolloquium an der Fachhochschule Aachen, 23. November 2000. / Ley, Wilfried [Hrsg.]},
  publisher = {DGLR},
  address   = {Bonn},
  isbn      = {3-932182-14-6},
  pages     = {VIII, 296 S. : zahlr. Ill., graph. Darst.},
  year      = {2000},
  language  = {de}
}
@book{Ley1998,
  author    = {Ley, Wilfried},
  title     = {Internationale Raumstation : Konfiguration, Betrieb und Nutzung ; Gemeinschaftsveranstaltung der FH Aachen, der DGLR und des DLR / 11. Raumfahrt-Kolloquium an der Fachhochschule Aachen, 26. November 1998. / Ley, Wilfried [Hrsg.]},
  publisher = {DGLR},
  address   = {Bonn},
  isbn      = {3-932182-04-9},
  pages     = {VIII, 208 S. : Ill., graph. Darst., 30 cm},
  year      = {1998},
  language  = {de}
}
@book{Ley1997,
  author    = {Ley, Wilfried},
  title     = {Raumfahrtmissionen zur Erkundung des Sonnensystems : Gemeinschaftsveranstaltung der FH Aachen, der DGLR und des DLR / 10. Raumfahrt-Kolloquium an der Fachhochschule Aachen, 5. November 1997 / Ley, Wilfried [Hrsg.]},
  publisher = {DGLR},
  address   = {Bonn},
  isbn      = {3-922010-99-7},
  pages     = {VIII, 251 S. : Ill., graph. Darst., 30 cm},
  year      = {1997},
  language  = {de}
}
@book{Ley1995,
  author    = {Ley, Wilfried},
  title     = {Tr{\"a}gersysteme : Gemeinschaftsveranstaltung der FH Aachen und der DGLR / 8. Raumfahrt-Kolloquium an der Fachhochschule Aachen, 9. November 1995 / Ley, Wilfried [Hrgs.]},
  publisher = {DGLR},
  address   = {Bonn},
  isbn      = {3-922010-92-X},
  pages     = {VII, 245 S. : Ill., graph. Darst.},
  year      = {1995},
  language  = {de}
}
@book{Ley1990,
  author    = {Ley, Wilfried},
  title     = {Seilgefesselte Raumflugk{\"o}rper, -Tethertechnik- : Gemeinschaftsveranstaltung der FH Aachen und der DGLR ... / 3. Raumfahrt-Kolloquium an der Fachhochschule Aachen, 13. Dezember 1990. [Wiss. Programmleitung: W. Ley, W. Hallmann]},
  publisher = {DGLR},
  address   = {Bonn},
  isbn      = {3-922010-59-8},
  pages     = {Getr. Z{\"a}hl. : graph. Darst.},
  year      = {1990},
  language  = {de}
}
@book{Ley1982,
  author    = {Ley, Wilfried},
  title     = {Bewertung von Solarkollektormessungen unter natuerlichen und simulierten Bedingungen},
  publisher = {Inst. f. Raumsimulation},
  address   = {K{\"o}ln},
  pages     = {190 Seiten, 133 Bilder, 19 Tabellen, 43 Quellen},
  year      = {1982},
  language  = {de}
}
@book{Ley1988,
  author    = {Ley, Wilfried},
  title     = {Handbuch der Raumfahrttechnik : Grundlagen - Nutzung, Raumfahrtsysteme - Produktsicherung u. Produktmanagement / Willi Hallmann; Wilfried Ley},
  publisher = {Hanser},
  address   = {M{\"u}nchen [u.a.]},
  isbn      = {3446151303},
  pages     = {XVIII, 792 S : Ill., graph. Darst.},
  year      = {1988},
  language  = {de}
}
@book{Koehler1990,
  author    = {K{\"o}hler, Bernd},
  title     = {Werkstofftechnologie der Luft- und Raumfahrt. Teil 3: HT-Superlegierungen},
  publisher = {Mainz},
  address   = {Aachen},
  isbn      = {3-89653-863-2},
  pages     = {191 S. : graph. Darst.},
  year      = {1990},
  language  = {de}
}
@book{Koehler2001,
  author    = {K{\"o}hler, Bernd},
  title     = {Werkstofftechnologie der Luft- und Raumfahrt. Teil 3: HT-Superlegierungen. -2. Auflage},
  publisher = {Mainz},
  address   = {Aachen},
  isbn      = {3-89653-863-2},
  pages     = {191 S. : graph. Darst.},
  year      = {2001},
  language  = {de}
}
@book{Koehler1990,
  author    = {K{\"o}hler, Bernd},
  title     = {Werkstofftechnologie der Luft- und Raumfahrt. Teil 4 : Sonderwerkstoffe. -2. Aufl.},
  publisher = {Mainz},
  address   = {Aachen},
  isbn      = {3-89653-864-6},
  pages     = {148 S. : graph. Darst.},
  year      = {1990},
  language  = {de}
}
@book{Koehler2001,
  author    = {K{\"o}hler, Bernd},
  title     = {Werkstofftechnologie der Luft- und Raumfahrt. Teil 4 : Sonderwerkstoffe. -4. Aufl.},
  publisher = {Mainz},
  address   = {Aachen},
  isbn      = {3-89653-864-6},
  pages     = {148 S. : graph. Darst.},
  year      = {2001},
  language  = {de}
}
@book{Koehler2001,
  author    = {K{\"o}hler, Bernd},
  title     = {Werkstofftechnologie der Luft- und Raumfahrt. Teil 1 : Grundlagen. -4. Aufl.},
  publisher = {Mainz},
  address   = {Aachen},
  isbn      = {3-89653-861-6},
  pages     = {183 S. : graph. Darst.},
  year      = {2001},
  language  = {de}
}
@book{Koehler1990,
  author    = {K{\"o}hler, Bernd},
  title     = {Werkstofftechnologie der Luft- und Raumfahrt. Teil 1 : Grundlagen. -2. Aufl.},
  publisher = {Mainz},
  address   = {Aachen},
  isbn      = {3-89653-861-6},
  pages     = {183 S. : graph. Darst.},
  year      = {1990},
  language  = {de}
}
@book{Koehler1990,
  author    = {K{\"o}hler, Bernd},
  title     = {Werkstofftechnologie der Luft- und Raumfahrt. Teil 2 : Leichtmetalle und St{\"a}hle},
  publisher = {Mainz},
  address   = {Aachen},
  isbn      = {3-89653-862-4},
  pages     = {194 S. : graph. Darst.},
  year      = {1990},
  language  = {de}
}
@book{Koehler2001,
  author    = {K{\"o}hler, Bernd},
  title     = {Werkstofftechnologie der Luft- und Raumfahrt. Teil 2 : Leichtmetalle und St{\"a}hle. - 2. Aufl.},
  publisher = {Mainz},
  address   = {Aachen},
  isbn      = {3-89653-862-4},
  pages     = {194 S. : graph. Darst.},
  year      = {2001},
  language  = {de}
}
@book{Roeth2001,
  author    = {R{\"o}th, Thilo},
  title     = {Konstruktive und versuchstechnische Entwicklungswerkzeuge zur Gestaltung "fußg{\"a}ngerfreundlicher" Pkw-Vorderwagen : Elektronische Ressource / vorgelegt von Thilo R{\"o}th},
  address   = {Essen},
  pages     = {III, 124 S. : Ill., graph. Darst.},
  year      = {2001},
  language  = {de}
}
@article{SchmitzBartzHansen1991,
  author    = {Schmitz, G{\"u}nter and Bartz, R. and Hansen, W.},
  title     = {Flexibles elektronisches Verbrennungsmotoren-Indiziersystem (FEVIS)},
  series = {Vortr{\"a}ge und Kurzreferate : 13. und 14. November 1990, Congress Centrum, Magdeburg / Technische Universit{\"a}t "Otto von Guericke" Magdeburg, Fakult{\"a}t f{\"u}r Thermischen Maschinenbau, Institut f{\"u}r Maschinenmeßtechnik, Kolbenmaschinen und Instandhaltung},
  journal   = {Vortr{\"a}ge und Kurzreferate : 13. und 14. November 1990, Congress Centrum, Magdeburg / Technische Universit{\"a}t "Otto von Guericke" Magdeburg, Fakult{\"a}t f{\"u}r Thermischen Maschinenbau, Institut f{\"u}r Maschinenmeßtechnik, Kolbenmaschinen und Instandhaltung},
  address   = {Magdeburg},
  pages     = {485 -- 491},
  year      = {1991},
  language  = {de}
}
@article{Wahle2000,
  author    = {Wahle, Michael},
  title     = {Auf sicheren F{\"u}ßen stehen : Entwicklung eines Maschinenlagers mit einem Federkern aus zelligem Polyurethan},
  series = {Der Konstrukteur},
  volume    = {31},
  journal   = {Der Konstrukteur},
  number    = {6},
  isbn      = {0344-4570},
  pages     = {30 -- 32},
  year      = {2000},
  language  = {de}
}
@article{Schmitz2004,
  author    = {Schmitz, G{\"u}nter},
  title     = {Mechatronic Systems Simulation as an obligatory module for Mechatronic Master Students},
  series = {Mechatronics \& Robotics 2004 : Aachen, Germany, September 13 - 15, 2004 / [IEEE Industrial Electronics Society ...] P. Drews (ed.)},
  journal   = {Mechatronics \& Robotics 2004 : Aachen, Germany, September 13 - 15, 2004 / [IEEE Industrial Electronics Society ...] P. Drews (ed.)},
  publisher = {Eysoldt},
  address   = {Aachen},
  isbn      = {3-938153-50-X},
  pages     = {1278},
  year      = {2004},
  language  = {en}
}
@article{SchmitzOligschlaegerEifleretal.1994,
  author    = {Schmitz, G{\"u}nter and Oligschl{\"a}ger, U. and Eifler, G. and Lechner, H.},
  title     = {Automated System for Optimized Calibration of Engine Management Systems},
  year      = {1994},
  language  = {en}
}
@book{Schmitz2000,
  author    = {Schmitz, G{\"u}nter},
  title     = {Mechatronik im Automobil I: aktuelle Trends in der Systementwicklung f{\"u}r Automobile / G{\"u}nter Schmitz (Hrsg.)},
  publisher = {Expert-Verl.},
  address   = {Renningen},
  isbn      = {3-8169-1839-5},
  pages     = {227 S. : zahlr. Ill. und graph. Darst.},
  year      = {2000},
  language  = {de}
}
@article{SchmitzVomHemdtBreitschuhetal.2002,
  author    = {Schmitz, G{\"u}nter and Vom Hemdt, A. and Breitschuh, S. and Graber, S.},
  title     = {Virtuelle Praktika f{\"u}r die Ingenieurausbildung},
  series = {NetWorlds : Leben und Arbeiten in vernetzten Welten ; VDE-Kongress 2002, 21. bis 23. Oktober 2002 in Dresden / Gesamtleitung: J. Ebersp{\"a}cher},
  journal   = {NetWorlds : Leben und Arbeiten in vernetzten Welten ; VDE-Kongress 2002, 21. bis 23. Oktober 2002 in Dresden / Gesamtleitung: J. Ebersp{\"a}cher},
  publisher = {VDE-Verl.},
  address   = {Berlin [u.a.]},
  isbn      = {3-8007-2723-4},
  pages     = {69 -- 74},
  year      = {2002},
  language  = {de}
}
@article{SchmitzBartzBoehnke1992,
  author    = {Schmitz, G{\"u}nter and Bartz, R. and B{\"o}hnke, P.},
  title     = {Neue Methoden zur Erkennung des ottomotorischen Klopfens},
  series = {Motortechnische Zeitschrift : MTZ. 53 (1992), H. 6},
  journal   = {Motortechnische Zeitschrift : MTZ. 53 (1992), H. 6},
  isbn      = {0024-8525},
  pages     = {286 -- 293},
  year      = {1992},
  language  = {de}
}
@book{Esch2005,
  author    = {Esch, Thomas},
  title     = {Verbrennungsmotoren. - 6. Aufl., [Umdruck]},
  publisher = {Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik},
  address   = {Aachen},
  pages     = {Getr. Z{\"a}hlung : Ill., graph. Darst.},
  year      = {2005},
  language  = {de}
}
@book{Esch2005,
  author    = {Esch, Thomas},
  title     = {Raumfahrtantriebe. - 6. Aufl., [Umdruck]},
  publisher = {Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik},
  address   = {Aachen},
  pages     = {Getr. Z{\"a}hlung : Ill., graph. Darst.},
  year      = {2005},
  language  = {de}
}
@article{SchmitzPischinger1997,
  author    = {Schmitz, G{\"u}nter and Pischinger, M.},
  title     = {Mechatronische Simulation eines EMV- Aktuators},
  series = {TransMechatronik : Entwicklung und Transfer von Entwicklungssystemen der Mechatronik / Paderborner Workshop TransMechatronik, 24. Juni 1997, Heinz-Nixdorf-MuseumsForum. [Hrsg. J{\"u}rgen Gausemeier]},
  journal   = {TransMechatronik : Entwicklung und Transfer von Entwicklungssystemen der Mechatronik / Paderborner Workshop TransMechatronik, 24. Juni 1997, Heinz-Nixdorf-MuseumsForum. [Hrsg. J{\"u}rgen Gausemeier]},
  publisher = {Heinz-Nixdorf-Inst., Univ.-GH Paderborn},
  address   = {Paderborn},
  isbn      = {3-931466-22-1},
  pages     = {69 -- 83},
  year      = {1997},
  language  = {de}
}
@article{SchmitzSpicherKollmeier1988,
  author    = {Schmitz, G{\"u}nter and Spicher, U. and Kollmeier, H.P.},
  title     = {Application of a New Optical-Fiber Technique for Flame Propagation Diagnostics in IC Engines},
  year      = {1988},
  language  = {en}
}
@article{SchmitzAltherrHofmannetal.1998,
  author    = {Schmitz, G{\"u}nter and Altherr, M. and Hofmann, O. and Pischinger, M. (u.a.)},
  title     = {Anwendung moderner Simulationstools f{\"u}r die Entwicklung eines elektromagnetischen Ventilaktuators},
  series = {TransMechatronik : Entwicklung und Transfer von Entwicklungssystemen der Mechatronik / Aachener Workshop TransMechatronik 26. Mai 1998, Technologiezentrum am Europaplatz},
  journal   = {TransMechatronik : Entwicklung und Transfer von Entwicklungssystemen der Mechatronik / Aachener Workshop TransMechatronik 26. Mai 1998, Technologiezentrum am Europaplatz},
  publisher = {Heinz-Nixdorf-Inst, Univ.-GH Paderborn},
  address   = {Paderborn},
  isbn      = {3-931466-37-X},
  pages     = {55 -- 74},
  year      = {1998},
  language  = {de}
}
@article{SchmitzBartzHilgeretal.1990,
  author    = {Schmitz, G{\"u}nter and Bartz, R. and Hilger, U. and Siedentop, M.},
  title     = {Intelligent Alcohol Fuel Sensor},
  year      = {1990},
  language  = {en}
}
@article{SchmitzSchmittDammann1985,
  author    = {Schmitz, G{\"u}nter and Schmitt, H.J. and Dammann, H.},
  title     = {Weakly Guiding Semileaky Isolator with a Form-Birefringent Top Layer},
  series = {Conference on Lasers and Electro-Optics ; (5, 1985, Baltimore, Md.) ; Conference on Lasers and Electro-Optics (CLEO '85) ; (1985.05.21-24 ; Baltimore, Md.)},
  journal   = {Conference on Lasers and Electro-Optics ; (5, 1985, Baltimore, Md.) ; Conference on Lasers and Electro-Optics (CLEO '85) ; (1985.05.21-24 ; Baltimore, Md.)},
  publisher = {Optical Society of America},
  address   = {Washington, DC},
  pages     = {260},
  year      = {1985},
  language  = {en}
}
@article{SchmitzDamannSchmit1984,
  author    = {Schmitz, G{\"u}nter and Damann, H. and Schmit, H. J.},
  title     = {Design and Analysis of a Waveguide Isolator with a Form-Birefringent Top Layer},
  series = {ECOC '84 : Conference proceedings ; 10th European Conference on Optical Communication, September 3 - 6, 1984 Liederhalle Stuttgart, Federal Republic of Germany / Organized by Nachrichtentechn. Ges. im VDE (NTG).},
  journal   = {ECOC '84 : Conference proceedings ; 10th European Conference on Optical Communication, September 3 - 6, 1984 Liederhalle Stuttgart, Federal Republic of Germany / Organized by Nachrichtentechn. Ges. im VDE (NTG).},
  publisher = {VDE-Verl.},
  address   = {Berlin [u.a.]},
  isbn      = {3-8007-1383-7},
  pages     = {42},
  year      = {1984},
  language  = {en}
}
@article{SchmitzSchmitt1984,
  author    = {Schmitz, G{\"u}nter and Schmitt, H. J.},
  title     = {Anisotrope Filmwellenleiter f{\"u}r nichtreziproke optische Bauelemente},
  series = {URSI: Kleinheubacher Tagung am 3.10.83 / Hrsg.: Deutsche Telekom AG},
  journal   = {URSI: Kleinheubacher Tagung am 3.10.83 / Hrsg.: Deutsche Telekom AG},
  address   = {Darmstadt},
  isbn      = {0343-5725},
  pages     = {51},
  year      = {1984},
  language  = {de}
}
@book{Schmitz1985,
  author    = {Schmitz, G{\"u}nter},
  title     = {Nichtreziproke optische Bauelemente mit k{\"u}nstlich anisotropen Filmwellenleitern},
  address   = {Aachen},
  pages     = {116 S. : Ill., zahlr. graph. Darst.},
  year      = {1985},
  language  = {de}
}
@article{WittmannKellWinkleretal.1998,
  author    = {Wittmann, Klaus and Kell, G. and Winkler, F. and G{\"u}nther, M. (u.a.)},
  title     = {High resolution temperature measurement technique for materials sciences experiments in space},
  series = {Acta Astronautica. 43 (1998), H. 7-8},
  journal   = {Acta Astronautica. 43 (1998), H. 7-8},
  isbn      = {0094-5765},
  pages     = {385 -- 395},
  year      = {1998},
  language  = {en}
}
@article{WittmannBewersdorffGoerleretal.1993,
  author    = {Wittmann, Klaus and Bewersdorff, A. and G{\"o}rler, G.P. and Otto, G.},
  title     = {Solidification of silver-germanium alloys in an amorphous matrix aboard the space station Mir},
  series = {Acta Astronautica. 29 (1993), H. 7},
  journal   = {Acta Astronautica. 29 (1993), H. 7},
  isbn      = {0094-5765},
  pages     = {547 -- 552},
  year      = {1993},
  language  = {en}
}
@article{WittmannUlamecFeuerbacheretal.1995,
  author    = {Wittmann, Klaus and Ulamec, S. and Feuerbacher, B. and Rosenbauer, H.},
  title     = {Technical Challenge, Scientific Thrill: A Long Term Lander on an Active Comet},
  series = {Lunar and Planetary Science. 26 (1995)},
  journal   = {Lunar and Planetary Science. 26 (1995)},
  isbn      = {0270-9511},
  pages     = {1431 -- 1432},
  year      = {1995},
  language  = {en}
}
@article{WittmannUlamecFeuerbacheretal.1997,
  author    = {Wittmann, Klaus and Ulamec, S. and Feuerbacher, B. and Rosenbauer, H. (u.a.)},
  title     = {Rosetta Lander - In Situ Investigation of a Cometary Nucleus},
  series = {Lunar and Planetary Science. 28 (1997)},
  journal   = {Lunar and Planetary Science. 28 (1997)},
  isbn      = {0270-9511},
  pages     = {1461 -- 1462},
  year      = {1997},
  language  = {en}
}
@article{WittmannPadeken1993,
  author    = {Wittmann, Klaus and Padeken, D.},
  title     = {The User Center for Microgravity MUSC - Support for space experiments},
  series = {DLR-Nachrichten. 70 (1993)},
  journal   = {DLR-Nachrichten. 70 (1993)},
  isbn      = {0937-0420},
  pages     = {19 -- 24},
  year      = {1993},
  language  = {en}
}
@article{WittmannSchmidtPadekenetal.1988,
  author    = {Wittmann, Klaus and Schmidt, H. P. and Padeken, D. and Hildmann, B.},
  title     = {The Microgravity User Support Centre (MUSC)},
  series = {ESA SP. 277 (1988)},
  journal   = {ESA SP. 277 (1988)},
  isbn      = {0379-6566},
  pages     = {525},
  year      = {1988},
  language  = {en}
}
@article{Wittmann1993,
  author    = {Wittmann, Klaus},
  title     = {The microgravity User Support Centre},
  series = {Space Technology - Industrial and Commercial Applications. 13 (1993), H. 2},
  journal   = {Space Technology - Industrial and Commercial Applications. 13 (1993), H. 2},
  isbn      = {0892-9270},
  pages     = {121 -- 124},
  year      = {1993},
  language  = {en}
}
@article{WittmannFortezza1992,
  author    = {Wittmann, Klaus and Fortezza, R.},
  title     = {Telescience opportunities in the precursor flights},
  series = {Space Technology - Industrial and Commercial Applications. 13 (1992), H. 2},
  journal   = {Space Technology - Industrial and Commercial Applications. 13 (1992), H. 2},
  isbn      = {0892-9270},
  pages     = {221 -- 226},
  year      = {1992},
  language  = {en}
}
@article{WahleWeber2002,
  author    = {Wahle, Michael and Weber, M.},
  title     = {Simulationsmodell zur Darstellung der Eigenschaften von Fahrzeug-Stoßd{\"a}mpfern bei beliebiger dynamischer Belastung, Simulationsmodell f{\"u}r Stoßd{\"a}mpfer},
  year      = {2002},
  language  = {de}
}
@article{WahleWeber2001,
  author    = {Wahle, Michael and Weber, M.},
  title     = {Zum Stand von Komponentenmodellen im Rahmen der Fahrzeugsimulation},
  year      = {2001},
  language  = {de}
}
@article{WittmannUlamecRichter1999,
  author    = {Wittmann, Klaus and Ulamec, S and Richter, L},
  title     = {Lander Systems for Planetary Missions},
  series = {Laboratory astrophysics and space research / ed. by P. Ehrenfreund},
  journal   = {Laboratory astrophysics and space research / ed. by P. Ehrenfreund},
  publisher = {Kluwer},
  address   = {Dordrecht [u.a.]},
  isbn      = {0-7923-5338-2},
  pages     = {597 -- 621},
  year      = {1999},
  language  = {en}
}
@article{WittmannSchmidtFeuerbacher1988,
  author    = {Wittmann, Klaus and Schmidt, H. P. and Feuerbacher, B.},
  title     = {Microgravity research and user support in the Space Station era: The Microgravity User Support Centre},
  series = {Acta Astronautica. 17 (1988), H. 11-12},
  journal   = {Acta Astronautica. 17 (1988), H. 11-12},
  isbn      = {0094-5765},
  pages     = {1161 -- 1168},
  year      = {1988},
  language  = {en}
}