TY - RPRT TI - Shielded balanced and coaxial transmission lines - parametric measurements and instrumentation relevant to signal waveform transmission in digital service AU - Gans, W L PY - 1981 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS TN 1042 DO - 10.6028/NBS.TN.1042 ER -