@article{HillenEckenbachQuadfliegetal.1991,
  author    = {Hillen, Walter and Eckenbach, W. and Quadflieg, Peter and Zaengel, Thomas T.},
  title     = {Signal-to-noise performance of a CsI fluorescent screen},
  series = {Medical Imaging V: Image physics},
  journal   = {Medical Imaging V: Image physics},
  isbn      = {0-8194-0538-8},
  pages     = {120 -- 131},
  year      = {1991},
  language  = {en}
}
@article{HillenRuppSchiebeletal.1989,
  author    = {Hillen, Walter and Rupp, S. and Schiebel, U. and Zaengel, Thomas T.},
  title     = {Imaging performance of a selenium-based detector for high-resolution radiography},
  series = {Medical Imaging III: Image Formation},
  journal   = {Medical Imaging III: Image Formation},
  isbn      = {0-8194-0125-0},
  pages     = {296},
  year      = {1989},
  language  = {en}
}