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- [4] OPTICAL FREQUENCY COMBS AND APPLICATIONS AT NPL EFTF-2010 24TH EUROPEAN FREQUENCY AND TIME FORUM, 2010,
- [5] Femtosecond optical frequency comb measurements at NPL 2002 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS, CONFERENCE DIGEST, 2002, : 424 - 425
- [6] PROGRESS IN BUILDING OF CESIUM FOUNTAIN FREQUENCY STANDARD AT NPL, INDIA 2010 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS CPEM, 2010, : 76 - 77
- [7] Femtosecond comb measurements of optical frequency standards at NPL 2002 IEEE/LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2, 2002, : 277 - 278
- [8] PROGRESS TOWARDS AN OPTICAL FREQUENCY STANDARD BASED ON ION TRAPS APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1988, 46 (01): : 87 - 93
- [9] The NPL moving coil balance: Progress towards monitoring the kilogram. METROLOGY - AT THE THRESHOLD OF THE CENTURY ARE WE READY?, 1999, : 333 - 335