@article{SchaeferBoegeShanjiaetal.1994,
  author    = {Sch{\"a}fer, Horst and Boege, P. and Shanjia, Xu and Xinzhang, Wu (u.a.)},
  title     = {Improved conductivity-measurement of semiconductor epitaxial layers by means of the contactless microwave method},
  series = {Conference digest : 10 - 14 January 1994, San Diego, California / International Conference on Millimeter and Submillimeter Waves and Applications / Mohammed N. Afsar, chair/ed.},
  journal   = {Conference digest : 10 - 14 January 1994, San Diego, California / International Conference on Millimeter and Submillimeter Waves and Applications / Mohammed N. Afsar, chair/ed.},
  publisher = {SPIE},
  address   = {Bellingham, Wash.},
  isbn      = {0-8194-1558-8},
  pages     = {649 -- 658},
  year      = {1994},
  language  = {en}
}
@article{SchaeferSchollGerschuetzetal.1994,
  author    = {Sch{\"a}fer, Horst and Scholl, S. and Gersch{\"u}tz, F. and Fischer, A. (u.a.)},
  title     = {Persistent Photoconductivity in CdTe-based II-VI-Semiconductors},
  series = {Solid State Communications. 91 (1994), H. 6},
  journal   = {Solid State Communications. 91 (1994), H. 6},
  isbn      = {0038-1098},
  pages     = {491 -- 495},
  year      = {1994},
  language  = {en}
}