https://www.bipm.org/en/committees/cc/cctf
CCTF - BIPM
cctfbipm
https://www.bipm.org/fr/committees/cc/cctf/wg/cctf-tfu/2023-09-26
cctf/cctf-tfu/2023-09-26 - BIPM
cctfbipm
https://www.iers.org/IERS/EN/Organization/About/RelationOrganizations/CCTF/cctf
Consultative Committee for Time and Frequency (CCTF)
ICSU World Data System
time and frequencyconsultative committeecctf
https://www.bipm.org/en/committees/cc/cctf/wg/cctf-wgsp/2020-11-20
cctf/cctf-wgsp/2020-11-20 - BIPM
cctfbipm