TY  - BOOK
ED  - Institute of Electrical and Electronics Engineers.
TI  - Ieee standard definitions of physical quantities for fundamental frequency and time metrology
T2  - Ieee std 1139-1988
AV  - QC100 I44
PY  - 1988///
CY  - New York, new york
PB  - IEEE
KW  - Medición
KW  - Terminologia
KW  - Constantes físicas
KW  - Terminología
N1  - "approved october 20, 1988 ieee standards board"
ER  -