@misc{1159761, author = {George Kamas and Sandra L Howe}, title = {Time and frequency users' manual:}, year = {1979}, month = {1979-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.SP.559}, language = {en}, }