@book{BenknerDavid1999,
  author    = {Benkner, Thorsten and David, Klaus},
  title     = {Digitale Mobilfunksysteme : Grundlagen und aktuelle Systeme. - 2., aktualis. u. erw. Aufl.},
  publisher = {Teubner},
  address   = {Stuttgart},
  isbn      = {3-519-16181-8},
  pages     = {XIII, 457 S.. : graph. Darst.},
  year      = {1999},
  language  = {en}
}
@book{BenknerStepping2002,
  author    = {Benkner, Thorsten and Stepping, Christoph},
  title     = {UMTS - Universal Mobile Telecommunications System},
  publisher = {Schlembach},
  address   = {Weil der Stadt},
  isbn      = {3-935340-07-9},
  pages     = {XVI, 511 S. : graph. Darst.},
  year      = {2002},
  language  = {en}
}
@book{EngelnMuellgesUhlig1996,
  author    = {Engeln-M{\"u}llges, Gisela and Uhlig, Frank},
  title     = {Numerical algorithms with C},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-60530-0},
  pages     = {XXII, 596 S. : graph. Darst. + 1 CD-ROM},
  year      = {1996},
  language  = {en}
}
@article{SchulteZurhausenPoznanska1994,
  author    = {Schulte-Zurhausen, Manfred and Poznanska, K.},
  title     = {Kryteria klasyfikacji malych i srednich przedsiebiorstw = Kriterien zur Klassifizierung von kleinen und mittleren Unternehmen},
  series = {Przeglad Organizacji (1994)},
  journal   = {Przeglad Organizacji (1994)},
  pages     = {24 -- 27},
  year      = {1994},
  language  = {en}
}
@book{EngelnMuellgesUhlig1996,
  author    = {Engeln-M{\"u}llges, Gisela and Uhlig, Frank},
  title     = {Numeric Algorithms with Fortran},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-60529-0},
  pages     = {XXII, 602 S. : Ill., graph. Darst. + 1 CD-ROM},
  year      = {1996},
  language  = {en}
}
@article{GebhardtSchmidt2002,
  author    = {Gebhardt, Andreas and Schmidt, Frank-Michael},
  title     = {Practical experiences with making and finishing of coloured models using 3D printing},
  year      = {2002},
  language  = {en}
}
@book{Gebhardt2003,
  author    = {Gebhardt, Andreas},
  title     = {Rapid Prototyping},
  publisher = {Hanser},
  address   = {Munich [u.a.]},
  isbn      = {3-446-21259-0},
  pages     = {XV, 379 S. : Ill., graph. Darst.},
  year      = {2003},
  language  = {en}
}
@article{Gebhardt2001,
  author    = {Gebhardt, Andreas},
  title     = {Rapid Prototyping and PIV},
  year      = {2001},
  language  = {en}
}
@article{Gebhardt2001,
  author    = {Gebhardt, Andreas},
  title     = {Laserwelding with fillerwire},
  series = {LIA handbook of laser material processing / Laser Institute of America},
  journal   = {LIA handbook of laser material processing / Laser Institute of America},
  address   = {Orlando, Florida},
  isbn      = {3-540-41770-2},
  year      = {2001},
  language  = {en}
}
@book{Gebhardt2000,
  author    = {Gebhardt, Andreas},
  title     = {Rapid prototyping : Werkzeug f{\"u}r die schnelle Produktentstehung. - 2., v{\"o}llig {\"u}berarb. Aufl.},
  publisher = {Hanser},
  address   = {M{\"u}nchen [u.a.]},
  isbn      = {3-446-21242-6},
  pages     = {XVII, 409 S. : Ill., graph. Darst.},
  year      = {2000},
  language  = {en}
}