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ADVA Launches High-Performance Optical Cesium Atomic Clock for PNT Assurance in Critical Infrastructure - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design
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Isro develops desi atomic clock, to be used in navigation satellites | India News - Times of India
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Cesium Clock Primary Frequency Standard 5071A - Chronos Technology
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What is a "cesium atomic clock"? - National Research Council Canada