@misc{1147341, author = {Gwen E Bennett}, title = {NIST time and frequency bulletin no. 508:}, year = {2000}, month = {2000-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.IR.5091-03}, language = {en}, }