Progress towards optical frequency standards based on two-photon transitions in atomic silver
2007 ◽
Vol 16
(12b)
◽
pp. 2537-2540
1967 ◽
Vol 3
(6)
◽
pp. 231-231
◽
1993 ◽
Vol 102
(5-6)
◽
pp. 432-438
◽