TY - RPRT TI - 4-gc parametric amplifier for satellite communication ground station receiver AU - M. Uenohara AU - M. Chruney AU - K. M. Eisele AU - D. C. Hanson AU - A. L. Stillwell PY - 1963 UR - https://ntrs.nasa.gov/citations/19640001180 ID - 19640001180 ER -