D.M.Kerns and R.W.Beatty : "An understanding of this introductory microwave
network analysis is essential to the serious worker in the ?eld of microwave
measurements. In order to investigate errors in measurements, one must have
in mind precisely what quantity is desired in the measurement. Basic definitions
of these quantities involve both explicit and implicit assumptions which must be
recognized. In addition a knowledge of these analytical tools should be helpful
in understanding error analyses already performed by others and described in
the literature.", Basic Theory of Wave guide Junctions and Introductory
Microwave Network Analysis, Part 2, Introductory Microwave Network Analysis,
2.0.Introduction to Part 2, p.34, Paragraph 3, International Series of Monographs
in Electromagnetic Waves, Editors: A. L. Cullen, V. A. Fock J. R. Wait, Volume
13, Pergamon Press Inc, First Edition, 1967.
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