REFERENCES
- CHI-Hsiang Chuang & Tzauh-Cheng Jair. Atomic Time and Frequency Standards Development at Shanghai Observatory, China. IEEE Trans. IM-29, 3, 1980; 158–163.
- Levine (M W), Vessot (R F C), etc. A Hydrogen Maser Design for Ground Applications. In Proc. of the 8th PTTI planning meeting, 1976.
- Mungall (A G), Daams (H), Morris (D) & Costain (C C). Performance and Operation of the NRC Primary Caesium Clock. Cs V, Metrologia, 12, 1976; 129–139.