@article{SchuermannKochImperiaetal.1999,
  author    = {Sch{\"u}rmann, H. and Koch, Norbert and Imperia, Paolo and Schrader, Sigurd and Jandke, M. and Strohriegl, P. and Schulz, Burkhard and Leising, G. and Brehmer, Ludwig},
  title     = {Ultraviolet photoelectron spectroscopic study of heterocyclic model compounds for electroluminescent devices},
  year      = {1999},
  language  = {en}
}
@article{SchraderImperiaKochetal.1999,
  author    = {Schrader, Sigurd and Imperia, Paolo and Koch, Norbert and Leising, G. and Falk, B.},
  title     = {Organic Light-emitting devices based on new heterocyclic compounds},
  year      = {1999},
  language  = {en}
}
@article{SchraderVismantsDietzeletal.1999,
  author    = {Schrader, Sigurd and Vismants, Z. and Dietzel, Birgit and Flueraru, C. and Prescher, Dietrich and Reiche, J{\"u}rgen and Motschmann, H. and Brehmer, Ludwig},
  title     = {Linear and nonlinear optical properties of Langmuir-Blodgett multilayers from chromophore-containing maleic acid anhydride polymers},
  year      = {1999},
  language  = {en}
}
@article{SchraderSchuermannKochetal.1999,
  author    = {Schrader, Sigurd and Sch{\"u}rmann, H. and Koch, Norbert and Prescher, Dietrich},
  title     = {Electronic structure of new donor acceptor substituted chromophores},
  year      = {1999},
  language  = {en}
}
@article{SchuermannKochVollmeretal.1999,
  author    = {Sch{\"u}rmann, H. and Koch, Norbert and Vollmer, A. and Schrader, Sigurd and Neumann, M.},
  title     = {Angle resolved ultraviolet photoelectron spectroscopy (ARUPS) of oriented sexiphenyl layers},
  year      = {1999},
  language  = {en}
}