TY - GEN AU - Robert William Beatty C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1972-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.623 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1972 TI - Invariance of the cross ratio applied to microwave network analysis: ER -