@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}
}