@article{HeuermannSchiek2009,
  author    = {Holger Heuermann and B. Schiek},
  title     = {Procedures for the Determination of the Scattering Parameters for Network Analyzer Calibration},
  journal   = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 42 (1993), H. 2},
  pages     = {528 -- 531},
  year      = {2009},
}