Couples of lower and upper slopes and resonant second order ordinary differential equations with nonlocal boundary conditions
2002 ◽
Vol 273
(2)
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pp. 512-528
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2012 ◽
Vol 218
(19)
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pp. 9647-9656
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2020 ◽
Vol 0
(0)
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2018 ◽
Vol 21
(2)
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pp. 423-441
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2018 ◽
Vol 339
◽
pp. 516-534
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2009 ◽
Vol 33
(1-2)
◽
pp. 137-153
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2008 ◽
Vol 24
(3)
◽
pp. 924-938
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