@article{SchaeferSchollWaagetal.1993,
  author    = {Sch{\"a}fer, Horst and Scholl, S. and Waag, A. and Hommel, D. (u.a.)},
  title     = {Two-dimensional Shubnikov-de Haas oscillations in modulation-doped CdTe/CdMnTe quantum-well structures},
  series = {Applied Physics Letters. 62 (1993), H. 23},
  journal   = {Applied Physics Letters. 62 (1993), H. 23},
  pages     = {3010 -- 3012},
  year      = {1993},
  language  = {en}
}
@article{SchaeferShanjiaXinzhangetal.1993,
  author    = {Sch{\"a}fer, Horst and Shanjia, Xu and Xinzhang, Wu and Boege, P.},
  title     = {Scattering Characteristics of 3-D Discontinuity Consisting of Semiconductor Sample Filled in Waveguide with Gaps},
  series = {International Journal of Infrared and Millimeter Waves. 14 (1993), H. 10},
  journal   = {International Journal of Infrared and Millimeter Waves. 14 (1993), H. 10},
  isbn      = {0195-9271},
  pages     = {2155 -- 2190},
  year      = {1993},
  language  = {en}
}