A microwave frequency standard based on trapped, buffer gas-cooled
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1953 ◽
Vol 24
(8)
◽
pp. 565-568
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1969 ◽
Vol 5
(8)
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pp. 424-426
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1956 ◽
Vol 4
(2)
◽
pp. 116-121
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2013 ◽
Vol 3
(3)
◽
pp. 322-330
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