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- [22] A HISTORICAL REVIEW OF ATOMIC FREQUENCY STANDARDS PROCEEDINGS OF THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, 1967, 55 (06): : 792 - +
- [23] Primary atomic frequency standards at NIST JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 2001, 106 (01): : 47 - 63
- [26] RELATIVE MERITS OF ATOMIC FREQUENCY STANDARDS PROCEEDINGS OF THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, 1967, 55 (06): : 805 - +
- [28] REPORT ON THE PRECISION OF ATOMIC STANDARDS OF FREQUENCY ASTRONOMICAL JOURNAL, 1959, 64 (03): : 120 - 123
- [29] Limits to time variation of fundamental constants from comparisons of atomic frequency standards The European Physical Journal Special Topics, 2008, 163 : 37 - 53
- [30] Limits to time variation of fundamental constants from comparisons of atomic frequency standards EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 2008, 163 (1): : 37 - 53