@misc{1156406, author = {James R Houghton}, title = {Voltage ratio detector for millivolt signals:}, year = {1965}, month = {1965-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.266}, language = {en}, }