Existence results for boundary value problems for ordinary differential equations and difference equations
1995 ◽
Vol 125
(4)
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pp. 777-799
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2001 ◽
Vol 42
(3-5)
◽
pp. 695-704
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2002 ◽
Vol 15
(6)
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pp. 761-766
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2000 ◽
Vol 248
(2)
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pp. 333-347
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1974 ◽
Vol 11
(2)
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pp. 411-434
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2001 ◽
Vol 7
(2)
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pp. 297-321
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1988 ◽
Vol 8
(3)
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pp. 239-248
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