Semiclassical calculations of vibrational energy levels for nonseparable systems using the Birkhoff–Gustavson normal form
1979 ◽
Vol 71
(4)
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pp. 1706-1717
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1983 ◽
Vol 78
(7)
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pp. 4795-4795
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Keyword(s):
2007 ◽
Vol 245
(2)
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pp. 115-125
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1992 ◽
Vol 70
(1)
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pp. 1-14
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2006 ◽
Vol 8
(24)
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pp. 2855
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