@article{HeuermannSchiek1993,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {LNN( Line-Network-Network): The In-Fixture Calibration Procedure},
  pages     = {149 -- 149},
  year      = {1993},
  language  = {en}
}
@article{HeuermannSchiek1992,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {A Generalization of the Txx Network Analyzer Self-Calibration Procedure},
  series = {Conference proceedings : monday 24th to thursday 27th august 1992, Helsinki University of Technology, Espoo, Finland ; [the international conference and exhibition designed for the Microwave Community]. Vol. 2},
  journal   = {Conference proceedings : monday 24th to thursday 27th august 1992, Helsinki University of Technology, Espoo, Finland ; [the international conference and exhibition designed for the Microwave Community]. Vol. 2},
  publisher = {Microwave Exhibitions and Publishers},
  address   = {Tunbridge Wells},
  isbn      = {0-946821-77-1},
  pages     = {907 -- 912},
  year      = {1992},
  language  = {en}
}
@article{HeuermannSchiek1997,
  author    = {Heuermann, Holger and Schiek, B.},
  title     = {15-term self-calibration methods for the error-correction of on-wafer measurements},
  series = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 46 (1997), H. 5},
  journal   = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 46 (1997), H. 5},
  isbn      = {0018-9456},
  pages     = {1105 -- 1110},
  year      = {1997},
  language  = {en}
}