TY  - GEN
AU  - Michael Lombardi
C2  - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD
DA  - 2017-06-01
DO  - https://doi.org/10.6028/jres.122.029
LA  - en
M1  - 122
PB  - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD
PY  - 2017
TI  - A Historical Review of U. S. Contributions to the Atomic Definition of the SI Second
ER  -