Bertrand systems on spaces of constant sectional curvature. The action—angle analysis
2000 ◽
Vol 46
(3)
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pp. 429-460
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2006 ◽
Vol 29
(2)
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pp. 185-210
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2005 ◽
Vol 79
(1)
◽
pp. 1-10
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2012 ◽
Vol 140
(5)
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pp. 1835-1847
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Keyword(s):
2015 ◽
Vol 99
(1)
◽
pp. 63-75
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2004 ◽
Vol 79
(2)
◽
pp. 300-316
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Keyword(s):