On hyperfine frequency shifts caused by buffer gases: Application to the optically pumped passive rubidium frequency standard
1994 ◽
Vol 41
(2)
◽
pp. 245-249
◽
1976 ◽
Vol IM-25
(3)
◽
pp. 203-210
◽
Keyword(s):
1989 ◽
pp. 116-119
◽