@misc{indiciae388a90fd5e8d, title = {A minimum-noise, low temperature cooled parametric amplifier system with a simulated closed-cycle refrigerator system monthly report no. 10, 1 apr. - 1 may 1965}, year = {1965}, url = {https://ntrs.nasa.gov/citations/19650019589}, note = {Source identifier: 19650019589} }