The application of analytical methods in degenerate perturbation theory
1974 ◽
Vol 61
(3)
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pp. 786-798
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1984 ◽
Vol 71
(6)
◽
pp. 1221-1238
◽
1984 ◽
Vol 71
(3)
◽
pp. 670-670
◽
1983 ◽
Vol 70
(2)
◽
pp. 439-451
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1968 ◽
Vol 49
(9)
◽
pp. 3890-3894
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Keyword(s):
1987 ◽
Vol 20
(18)
◽
pp. 4635-4647
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Keyword(s):
2011 ◽
Vol 134
(21)
◽
pp. 214113
◽
2008 ◽
Vol 10
(13)
◽
pp. 1781
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