Phys. Rev. Lett. 10, 165–167 (1963)Frequency Stability of He-Ne Masers and Measurements of LengthReceived 11 February 1963; published in the issue dated 1 March 1963 © 1963 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.10.165
DOI:
10.1103/PhysRevLett.10.165
PACS:
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