@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}
}
@inproceedings{LaoBuehrigPolaczekRoeth2011,
  author    = {Lao, B. and B{\"u}hrig-Polaczek, A. and R{\"o}th, Thilo},
  title     = {Funktionsintegrierte Leichtbaustrukturen in gussintensiver Metall-Hybridbauweise},
  series = {Verbundwerkstoffe und Werkstoffverbunde: Tagungsband zum 18. Symposium ; 30.03.2011 bis 01.04.2011, Chemnitz},
  booktitle = {Verbundwerkstoffe und Werkstoffverbunde: Tagungsband zum 18. Symposium ; 30.03.2011 bis 01.04.2011, Chemnitz},
  editor    = {Wielage, Bernhard},
  publisher = {Eigenverlag},
  address   = {Chemnitz},
  isbn      = {978-3-00-033801-4},
  pages     = {413 -- 421},
  year      = {2011},
  language  = {de}
}
@article{LasaiKolmWahleetal.2000,
  author    = {Lasai, Sven and Kolm, Heiko and Wahle, Michael and Pohl, Reiner},
  title     = {Schwingungsanalyse von Subsystemen mit Hilfe der Simulation},
  series = {Automobiltechnische Zeitschrift - ATZ},
  volume    = {102},
  journal   = {Automobiltechnische Zeitschrift - ATZ},
  number    = {4},
  isbn      = {0001-2785},
  pages     = {266 -- 270},
  year      = {2000},
  language  = {de}
}
@article{LeipoldFichtnerHeberetal.2006,
  author    = {Leipold, M. and Fichtner, H. and Heber, B. and Groepper, P. and Lascar, S. and Burger, F. and Eiden, M. and Niederstadt, T. and Sickinger, C. and Herbeck, L. and Dachwald, Bernd and Seboldt, W.},
  title     = {Heliopause Explorer - A Sailcraft Mission to the Outer Boundaries of the Solar System},
  series = {Acta Astronautica. 59 (2006), H. 8-11},
  journal   = {Acta Astronautica. 59 (2006), H. 8-11},
  isbn      = {0094-5765},
  pages     = {786 -- 796},
  year      = {2006},
  language  = {en}
}
@book{LemaitreBlome2010,
  author    = {Lemaitre, George and Blome, Hans-Joachim},
  title     = {Von der klassischen Kosmologie zum Quantenkosmos},
  editor    = {Blome, Hans-Joachim},
  publisher = {Deutsch},
  address   = {Frankfurt am Main},
  isbn      = {978-3-8171-3304-8},
  pages     = {240 S.},
  year      = {2010},
  language  = {de}
}
@article{LettiniHavermannGuidettietal.2010,
  author    = {Lettini, Antonio and Havermann, Marc and Guidetti, Marco and Fornaciari, Andrea},
  title     = {Improved functionalities and energy saving potential on mobile machines combining electronics with flow sharing valve and variable displacement pump},
  series = {IFK 7, 7th International Fluid Power Conference, Efficiency through Fluid Power, 7. Internationales Fluidtechnisches Kolloquium, Workshop Proceedings, Vol. 3, Aachen, DE, 22.-24. Mar, 2010},
  journal   = {IFK 7, 7th International Fluid Power Conference, Efficiency through Fluid Power, 7. Internationales Fluidtechnisches Kolloquium, Workshop Proceedings, Vol. 3, Aachen, DE, 22.-24. Mar, 2010},
  publisher = {-},
  isbn      = {978-3-940565-92-1},
  pages     = {103 -- 114},
  year      = {2010},
  language  = {en}
}
@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}
}