On a variational statement of a nonlocal boundary value problem for a fourth-order ordinary differential equation
2005 ◽
Vol 18
(4)
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pp. 439-444
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2005 ◽
Vol 182
(1)
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pp. 32-50
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2010 ◽
Vol 52
(1-2)
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pp. 200-206
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2019 ◽
Vol 70
(10)
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pp. 1585-1593
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