@article{WittmannKehrWillnecker2000,
  author    = {Wittmann, Klaus and Kehr, J. and Willnecker, R.},
  title     = {Decentralized Payload Operations Concept for Columbus},
  year      = {2000},
  language  = {en}
}
@article{WittmannBibringRosenbaueretal.2007,
  author    = {Wittmann, Klaus and Bibring, J.-P. and Rosenbauer, H. and Boehnhardt, H.},
  title     = {The Rosetta Lander ("Philae") Investigations / Bibring, J.-P. ; Rosenbauer, H. ; Boehnhardt, H. ; [...] Wittmann, K.},
  series = {Space Science Reviews. 128 (2007), H. 1-4},
  journal   = {Space Science Reviews. 128 (2007), H. 1-4},
  isbn      = {0038-6308},
  pages     = {205 -- 220},
  year      = {2007},
  language  = {en}
}
@article{RoethSchreiber2003,
  author    = {R{\"o}th, Thilo and Schreiber, Harold},
  title     = {CAKE (Computer Aided Kinematic Engineering) im Karrosseriebau und in der passiven Fahrzeugsicherheit / Schreiber , Harold ; R{\"o}th, Thilo},
  series = {Mobiles. 2002/2003 (2003), H. 33},
  journal   = {Mobiles. 2002/2003 (2003), H. 33},
  pages     = {65 -- 67},
  year      = {2003},
  language  = {de}
}
@article{RoethNowackBaumeister2006,
  author    = {R{\"o}th, Thilo and Nowack, N. and Baumeister, E.},
  title     = {Numerische L{\"o}sungsans{\"a}tze zur Auslegung von Stahl-Leichtmetall-Hybriden aus Verbundguss f{\"u}r zuk{\"u}nftige Fahrzeugstrukturen / Nowack, N. ; R{\"o}th, T. ; Baumeister, E.},
  series = {Berechnung und Simulation im Fahrzeugbau. Bd. 1 : Tagung W{\"u}rzburg, 27. und 28. September 2006 = Numerical analysis and simulation in vehicle engineering / VDI-Gesellschaft Fahrzeug- und Verkehrstechnik},
  journal   = {Berechnung und Simulation im Fahrzeugbau. Bd. 1 : Tagung W{\"u}rzburg, 27. und 28. September 2006 = Numerical analysis and simulation in vehicle engineering / VDI-Gesellschaft Fahrzeug- und Verkehrstechnik},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-091967-1},
  pages     = {363 -- 368},
  year      = {2006},
  language  = {de}
}
@article{Wittmann2000,
  author    = {Wittmann, Klaus},
  title     = {Overview of Space Operations at DLR},
  year      = {2000},
  language  = {en}
}
@article{Mertens1998,
  author    = {Mertens, Josef},
  title     = {Aerodynamische Ziele des Adaptiven Fl{\"u}gels (ADIF).},
  series = {DGLR-Jahrbuch 1998 Bd. 1},
  journal   = {DGLR-Jahrbuch 1998 Bd. 1},
  pages     = {47 -- 52},
  year      = {1998},
  language  = {de}
}
@article{MertensHuenecke1988,
  author    = {Mertens, Josef and H{\"u}necke, Klaus},
  title     = {Experimentelle Untersuchung zur Landeeigenschaft von Hyperschall-Flugger{\"a}ten / H{\"u}necke, Klaus ; Mertens, Josef},
  series = {DGLR-Jahrbuch 1988 Bd. 1},
  journal   = {DGLR-Jahrbuch 1988 Bd. 1},
  pages     = {706},
  year      = {1988},
  language  = {de}
}
@article{MertensKelmVelden1999,
  author    = {Mertens, Josef and Kelm, R. and Velden, A. van der},
  title     = {Interdisziplin{\"a}re Auslegung eines Verkehrsflugzeugfl{\"u}gels},
  series = {DGLR-Jahrbuch 1999 Bd. 3},
  journal   = {DGLR-Jahrbuch 1999 Bd. 3},
  pages     = {1605 -- 1610},
  year      = {1999},
  language  = {de}
}
@article{Mertens1999,
  author    = {Mertens, Josef},
  title     = {Einige herausragende Ergebnisse des Technologieprogramms "Reduktion des Aerodynamischen Widerstands (RaWid)"},
  series = {DGLR-Jahrbuch 1999 Bd. 3},
  journal   = {DGLR-Jahrbuch 1999 Bd. 3},
  pages     = {1461 -- 1468},
  year      = {1999},
  language  = {de}
}
@article{Mertens1992,
  author    = {Mertens, Josef},
  title     = {Laminar flow for supersonic transports},
  series = {Proceedings : March 16 - 18, 1992, Congress Centrum, Hamburg, Federal Republic of Germany / organized jointly by: Deutsche Gesellschaft f{\"u}r Luft- und Raumfahrt e.V. ... [Programme committee J. Szodruch ...]},
  journal   = {Proceedings : March 16 - 18, 1992, Congress Centrum, Hamburg, Federal Republic of Germany / organized jointly by: Deutsche Gesellschaft f{\"u}r Luft- und Raumfahrt e.V. ... [Programme committee J. Szodruch ...]},
  publisher = {DGLR},
  address   = {Bonn},
  isbn      = {3-922010-73-3},
  pages     = {319 -- 323},
  year      = {1992},
  language  = {en}
}