1996
Geck, B., J. Marquardt and M. Sagebiel. "Homodyne network analyzer based on the FMCW method and digital signal processing." CPEM Digest (Conference on Precision Electromagnetic Measurements), 1996, 530-531
1995
Geck, Bernd and Jürgen Marquardt. "Vermessung von Höchstfrequenzkomponenten mit Netzwerkanalysatoren in Hohlleitertechnik." Technisches Messen, 1995, 62(JG), 58-65 https://doi.org/10.1524/teme.1995.62.jg.58
1994
Geck, Bernd and Jürgen Marquardt. "A Homodyne Network Analyzer with Parallel Mixers for the Millimeterwave Range." 1994 24th European Microwave Conference, EUMA 19941994 24th European Microwave Conference, EUMA 1994., Institute of Electrical and Electronics Engineers Inc., 1994, 922-927 https://doi.org/10.1109/EUMA.1994.337331
