EXISTENCE OF SIX SOLUTIONS OF THE NONLINEAR HAMILTONIAN SYSTEM
2015 ◽
Vol 2015
◽
pp. 1-12
◽
2005 ◽
Vol 1
(2)
◽
pp. 135-142
◽
2008 ◽
Vol 14
(3)
◽
pp. 359-369
2012 ◽
Vol 13
(1)
◽
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